Killing Floor achievements
10,261
(2,850)

Killing Floor

3.7 out of 5 from 178 votes

There are 285 Killing Floor achievements worth 10,261

6,311 tracked gamers have this game, 114 have completed it (1.81%)

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Killing Floor Achievements

Pub Crawl18

Win a Long Game on West London on Normal Difficulty.

Unlocked by 1,897 tracked gamers (30% - TSA Ratio = 1.82)  

Lord of the Manor22

Win a Long Game on Manor on Normal Difficulty.

Unlocked by 1,344 tracked gamers (21% - TSA Ratio = 2.16)  

Lab Cleaner20

Win a Long Game on Biotics Lab on Normal Difficulty.

Unlocked by 1,554 tracked gamers (25% - TSA Ratio = 2.01)  

Chicken Farmer22

Win a Long Game on Farm on Normal Difficulty.

Unlocked by 1,302 tracked gamers (21% - TSA Ratio = 2.20)  

The Boss22

Win a Long Game on Offices on Normal Difficulty.

Unlocked by 1,272 tracked gamers (20% - TSA Ratio = 2.22)  

The Long War27

Complete a Long Game on all 5 Core Maps on Normal Difficulty.

Unlocked by 896 tracked gamers (14% - TSA Ratio = 2.65)  

Experimenticenticide11

Kill 100 Specimens.

Unlocked by 5,544 tracked gamers (87% - TSA Ratio = 1.06)  

Fascist Dietitian20

Kill 200 Bloats.

Unlocked by 1,572 tracked gamers (25% - TSA Ratio = 2.00)  

Homer's Heroes18

Kill 100 Sirens.

Unlocked by 1,951 tracked gamers (31% - TSA Ratio = 1.79)  

Keep Those Sneakers Off the Floor!20

Kill 20 Stalkers with Explosives.

Unlocked by 1,553 tracked gamers (24% - TSA Ratio = 2.01)  

Random Axe of Kindness17

Kill 15 Specimens with a Fire Axe in a Single Wave.

Unlocked by 2,256 tracked gamers (36% - TSA Ratio = 1.67)  

Bitter Irony26

Kill 2 Scrakes with a Chainsaw in a Single Wave.

Unlocked by 967 tracked gamers (15% - TSA Ratio = 2.55)  

Hot Cross Fun29

Kill 25 Burning Specimens with a Crossbow.

Unlocked by 764 tracked gamers (12% - TSA Ratio = 2.87)  

Dignity for the Dead46

Kill 10 Specimens Feeding on Dead Teammates Corpses.

Unlocked by 304 tracked gamers (5% - TSA Ratio = 4.55)  

Social Outburst12

Kill 8 Specimens with One Grenade.

Unlocked by 4,152 tracked gamers (65% - TSA Ratio = 1.23)  

Careful Spender19

Kill 4 Specimens with a Single Shot from a Hunting Shotgun.

Unlocked by 1,743 tracked gamers (27% - TSA Ratio = 1.90)  

It's Not Easy Being Greasy11

Cause a Specimen to Die by Luring them into Bloat Acid.

Unlocked by 5,381 tracked gamers (85% - TSA Ratio = 1.08)  

Too Close For Comfort17

Finish off a Fleshpound using a Melee Attack.

Unlocked by 2,093 tracked gamers (33% - TSA Ratio = 1.73)  

Master Surgeon22

As a Medic, Kill 8 Specimens using a Knife in a Single Wave.

Unlocked by 1,325 tracked gamers (21% - TSA Ratio = 2.18)  

It's What's Inside That Counts21

Turn 500 Specimens into Giblets.

Unlocked by 1,407 tracked gamers (22% - TSA Ratio = 2.11)  

Quarter Pounder With Ease20

Turn 5 Fleshpounds into Giblets.

Unlocked by 1,604 tracked gamers (25% - TSA Ratio = 1.98)  

Self Medicator16

In Co-op Mode, Use Syringe on Yourself 100 Times.

Unlocked by 2,610 tracked gamers (41% - TSA Ratio = 1.55)  

Thin-Ice Pirouette26

Complete 10 Waves when the Rest of your Team has Died.

Unlocked by 903 tracked gamers (14% - TSA Ratio = 2.64)  

Philanthropist14

Give 1,000 Pounds to Teammates who have 50% of Your Cash or Less.

Unlocked by 3,034 tracked gamers (48% - TSA Ratio = 1.44)  

I Like To Watch16

Aquire 5 Minutes of "Zed-Time".

Unlocked by 2,547 tracked gamers (40% - TSA Ratio = 1.57)  

Mr. Perky38

Get All of your Perks up to Level 5.

Unlocked by 427 tracked gamers (7% - TSA Ratio = 3.84)  

Straight Rush13

Kill the Patriarch Before he has a Chance to Heal.

Unlocked by 3,491 tracked gamers (55% - TSA Ratio = 1.34)  

The L.A.W. That Broke The Camel's Back20

Deliver the Killing Blow to the Patriarch with a L.A.W. Rocket.

Unlocked by 1,512 tracked gamers (24% - TSA Ratio = 2.04)  

Death To The Mad Scientist30

Defeat the Patriarch on Suicidal.

Unlocked by 718 tracked gamers (11% - TSA Ratio = 2.96)  

Experimentimillicide14

Kill 1,000 Specimens.

Unlocked by 3,430 tracked gamers (54% - TSA Ratio = 1.35)  

Experimentilottacide22

Kill 10,000 Specimens.

Unlocked by 1,343 tracked gamers (21% - TSA Ratio = 2.16)  

Hard Pub Crawl28

Win a Long Game on West London on Hard Difficulty.

Unlocked by 801 tracked gamers (13% - TSA Ratio = 2.80)  

Duke of the Manor32

Win a Long Game on Manor on Hard Difficulty.

Unlocked by 631 tracked gamers (10% - TSA Ratio = 3.16)  

Cattle Farmer33

Win a Long Game on Farm on Hard Difficulty.

Unlocked by 575 tracked gamers (9% - TSA Ratio = 3.31)  

Hard Boss34

Win a Long Game on Offices on Hard Difficulty.

Unlocked by 555 tracked gamers (9% - TSA Ratio = 3.37)  

Lab Assistant29

Win a Long Game on Biotics Lab on Hard Difficulty.

Unlocked by 741 tracked gamers (12% - TSA Ratio = 2.91)  

The Hard War37

Complete a Long Game on all 5 Core Maps on Hard Difficulty.

Unlocked by 449 tracked gamers (7% - TSA Ratio = 3.74)  

Suicidal Pub Crawl42

Win a Long Game on West London on Suicidal Difficulty.

Unlocked by 364 tracked gamers (6% - TSA Ratio = 4.15)  

Emperor of the Manor44

Win a Long Game on Manor on Suicidal Difficulty.

Unlocked by 329 tracked gamers (5% - TSA Ratio = 4.37)  

Alligator Farmer44

Win a Long Game on Farm on Suicidal Difficulty.

Unlocked by 323 tracked gamers (5% - TSA Ratio = 4.41)  

Mad Boss45

Win a Long Game on Offices on Suicidal Difficulty.

Unlocked by 315 tracked gamers (5% - TSA Ratio = 4.47)  

Lab Professor42

Win a Long Game on Biotics Lab on Suicidal Difficulty.

Unlocked by 355 tracked gamers (6% - TSA Ratio = 4.21)  

The Completely Suicidal War48

Complete a Long Game on all 5 Core Maps on Suicidal Difficulty.

Unlocked by 276 tracked gamers (4% - TSA Ratio = 4.77)  

Tin Man27

Win a Long Game on Foundry, on Normal Difficulty.

Unlocked by 880 tracked gamers (14% - TSA Ratio = 2.67)  

Steel Worker36

Win a Long Game on Foundry, on Hard Difficulty.

Unlocked by 491 tracked gamers (8% - TSA Ratio = 3.58)  

Man of Steel46

Win a Long Game on Foundry, on Suicidal Difficulty.

Unlocked by 297 tracked gamers (5% - TSA Ratio = 4.61)  

A Bit Barmy27

Win a Long Game on Bedlam, on Normal Difficulty.

Unlocked by 855 tracked gamers (13% - TSA Ratio = 2.71)  

Gone Mental33

Win a Long Game on Bedlam, on Hard Difficulty.

Unlocked by 572 tracked gamers (9% - TSA Ratio = 3.32)  

Complete Barking47

Win a Long Game on Bedlam, on Suicidal Difficulty.

Unlocked by 283 tracked gamers (4% - TSA Ratio = 4.72)  

Squirrel King of the Dark Forest28

Win a Long Game on Wyre, on Normal Difficulty.

Unlocked by 808 tracked gamers (13% - TSA Ratio = 2.79)  

Raccoon King of the Dark Forest37

Win a Long Game on Wyre, on Hard Difficulty.

Unlocked by 450 tracked gamers (7% - TSA Ratio = 3.74)  

Bear King of the Dark Forest48

Win a Long Game on Wyre, on Suicidal Difficulty.

Unlocked by 278 tracked gamers (4% - TSA Ratio = 4.75)  

Long, Hot Summer32

Complete a Long Game on all 3 Summer 2009 maps on Normal Difficulty.

Unlocked by 609 tracked gamers (10% - TSA Ratio = 3.22)  

Summer of 200940

Complete a Long Game on all 3 Summer 2009 maps on Hard Difficulty.

Unlocked by 386 tracked gamers (6% - TSA Ratio = 4.04)  

And Back to School50

Complete a Long Game on all 3 Summer 2009 maps on Suicidal Difficulty.

Unlocked by 253 tracked gamers (4% - TSA Ratio = 4.99)  

Explosive Personality39

As Demolitions, kill 1000 Specimens with the Pipebomb.

Unlocked by 415 tracked gamers (7% - TSA Ratio = 3.90)  

Flaming Hell, That was Close20

As Firebug, kill the Husk with the Flamethrower before he hurts anyone.

Unlocked by 1,629 tracked gamers (26% - TSA Ratio = 1.96)  

Merry Men28

Kill the Patriarch when everyone is ONLY using Crossbows.

Unlocked by 789 tracked gamers (12% - TSA Ratio = 2.82)  

Blooper Reel30

Turn 500 Zeds into Giblets using the M79.

Unlocked by 706 tracked gamers (11% - TSA Ratio = 2.98)  

Dot of Doom37

Get 25 headshots in a row with the EBR while using the Laser Sight.

Unlocked by 464 tracked gamers (7% - TSA Ratio = 3.68)  

SCAR'd29

Kill 1000 Specimens with the SCAR.

Unlocked by 731 tracked gamers (12% - TSA Ratio = 2.93)  

Healing Touch29

Heal 200 teammates with the MP7's medication dart.

Unlocked by 755 tracked gamers (12% - TSA Ratio = 2.89)  

Pound This34

Kill 100 Fleshpounds with the AA12.

Unlocked by 557 tracked gamers (9% - TSA Ratio = 3.36)  

Killer Junior28

Kill 20 crawlers in mid-air with the M79.

Unlocked by 779 tracked gamers (12% - TSA Ratio = 2.84)  

Getting Chunky21

Obliterate 10 Zeds at once with the Pipe Bomb.

Unlocked by 1,486 tracked gamers (23% - TSA Ratio = 2.06)  

Hellish Pub Crawl49

Win a Long Game on West London on Hell on Earth Difficulty.

Unlocked by 267 tracked gamers (4% - TSA Ratio = 4.86)  

Demonic King of the Manor51

Win a Long Game on Manor on Hell on Earth Difficulty.

Unlocked by 238 tracked gamers (4% - TSA Ratio = 5.14)  

Demon Farmer51

Win a Long Game on Farm on Hell on Earth Difficulty.

Unlocked by 245 tracked gamers (4% - TSA Ratio = 5.07)  

Boss from Hell51

Win a Long Game on Offices on Hell on Earth Difficulty.

Unlocked by 238 tracked gamers (4% - TSA Ratio = 5.14)  

Scientist from Hell49

Win a Long Game on Biotics Lab on Hell on Earth Difficulty.

Unlocked by 268 tracked gamers (4% - TSA Ratio = 4.85)  

Diablo Steel Man52

Win a Long Game on Foundry on Hell on Earth Difficulty.

Unlocked by 231 tracked gamers (4% - TSA Ratio = 5.23)  

Commit-ed for life52

Win a Long Game on Bedlam on Hell on Earth Difficulty.

Unlocked by 229 tracked gamers (4% - TSA Ratio = 5.24)  

Wolf King of the Dark Forest54

Win a Long Game on Wyre on Hell on Earth Difficulty.

Unlocked by 219 tracked gamers (3% - TSA Ratio = 5.36)  

Waste Disposal29

Win a Long Game on Biohazard on Normal Difficulty.

Unlocked by 732 tracked gamers (12% - TSA Ratio = 2.93)  

Waste Land38

Win a Long Game on Biohazard on Hard Difficulty.

Unlocked by 440 tracked gamers (7% - TSA Ratio = 3.78)  

Waste of Space48

Win a Long Game on Biohazard on Suicidal Difficulty.

Unlocked by 272 tracked gamers (4% - TSA Ratio = 4.81)  

Wasted51

Win a Long Game on Biohazard on Hell on Earth Difficulty.

Unlocked by 240 tracked gamers (4% - TSA Ratio = 5.12)  

Warehouse Janitor27

Win a Long Game on Crash on Normal Difficulty.

Unlocked by 865 tracked gamers (14% - TSA Ratio = 2.70)  

Warehouse Forklift Operator37

Win a Long Game on Crash on Hard Difficulty.

Unlocked by 461 tracked gamers (7% - TSA Ratio = 3.70)  

Warehouse Foreman48

Win a Long Game on Crash on Suicidal Difficulty.

Unlocked by 276 tracked gamers (4% - TSA Ratio = 4.77)  

Warehouse Manager53

Win a Long Game on Crash on Hell on Earth Difficulty.

Unlocked by 224 tracked gamers (4% - TSA Ratio = 5.31)  

Departure Gallery28

Win a Long Game on Departed on Normal Difficulty.

Unlocked by 816 tracked gamers (13% - TSA Ratio = 2.78)  

Departure Lounge37

Win a Long Game on Departed on Hard Difficulty.

Unlocked by 451 tracked gamers (7% - TSA Ratio = 3.74)  

Departure Gate47

Win a Long Game on Departed on Suicidal Difficulty.

Unlocked by 281 tracked gamers (4% - TSA Ratio = 4.73)  

Dear Departed52

Win a Long Game on Departed on Hell on Earth Difficulty.

Unlocked by 234 tracked gamers (4% - TSA Ratio = 5.18)  

Running Late30

Win a Long Game on Filth's Cross on Normal Difficulty.

Unlocked by 695 tracked gamers (11% - TSA Ratio = 3.01)  

Missed Connection40

Win a Long Game on Filth's Cross on Hard Difficulty.

Unlocked by 402 tracked gamers (6% - TSA Ratio = 3.96)  

Train Wreck50

Win a Long Game on Filth's Cross on Suicidal Difficulty.

Unlocked by 255 tracked gamers (4% - TSA Ratio = 4.97)  

Pile Up54

Win a Long Game on Filth's Cross on Hell on Earth Difficulty.

Unlocked by 217 tracked gamers (3% - TSA Ratio = 5.38)  

Gimme a Plaster!31

Win a Long Game on Hospital Horrors on Normal Difficulty.

Unlocked by 663 tracked gamers (10% - TSA Ratio = 3.08)  

That Bloody Well Hurts!41

Win a Long Game on Hospital Horrors on Hard Difficulty.

Unlocked by 371 tracked gamers (6% - TSA Ratio = 4.12)  

I'm Dying Here!50

Win a Long Game on Hospital Horrors on Suicidal Difficulty.

Unlocked by 254 tracked gamers (4% - TSA Ratio = 4.97)  

Not Dead Yet!53

Win a Long Game on Hospital Horrors on Hell on Earth Difficulty.

Unlocked by 227 tracked gamers (4% - TSA Ratio = 5.26)  

Ice Cube30

Win a Long Game on Icebreaker on Normal Difficulty.

Unlocked by 681 tracked gamers (11% - TSA Ratio = 3.04)  

Crushed Ice40

Win a Long Game on Icebreaker on Hard Difficulty.

Unlocked by 400 tracked gamers (6% - TSA Ratio = 3.96)  

Iceberg50

Win a Long Game on Icebreaker on Suicidal Difficulty.

Unlocked by 251 tracked gamers (4% - TSA Ratio = 5.00)  

Comet54

Win a Long Game on Icebreaker on Hell on Earth Difficulty.

Unlocked by 213 tracked gamers (3% - TSA Ratio = 5.43)  

Daytrip23

Win a Long Game on Mountain Pass on Normal Difficulty.

Unlocked by 1,198 tracked gamers (19% - TSA Ratio = 2.29)  

Gone Camping33

Win a Long Game on Mountain Pass on Hard Difficulty.

Unlocked by 589 tracked gamers (9% - TSA Ratio = 3.27)  

Mountaineer46

Win a Long Game on Mountain Pass on Suicidal Difficulty.

Unlocked by 293 tracked gamers (5% - TSA Ratio = 4.63)  

Park Ranger51

Win a Long Game on Mountain Pass on Hell on Earth Difficulty.

Unlocked by 244 tracked gamers (4% - TSA Ratio = 5.08)  

Neighborhood Watch30

Win a Long Game on Suburbia on Normal Difficulty.

Unlocked by 689 tracked gamers (11% - TSA Ratio = 3.02)  

Private Security40

Win a Long Game on Suburbia on Hard Difficulty.

Unlocked by 391 tracked gamers (6% - TSA Ratio = 4.01)  

Vigilante50

Win a Long Game on Suburbia on Suicidal Difficulty.

Unlocked by 250 tracked gamers (4% - TSA Ratio = 5.02)  

SWAT54

Win a Long Game on Suburbia on Hell on Earth Difficulty.

Unlocked by 213 tracked gamers (3% - TSA Ratio = 5.43)  

Slight Drip29

Win a Long Game on Waterworks on Normal Difficulty.

Unlocked by 735 tracked gamers (12% - TSA Ratio = 2.93)  

Burst Pipe39

Win a Long Game on Waterworks on Hard Difficulty.

Unlocked by 413 tracked gamers (7% - TSA Ratio = 3.90)  

Pressure Failure50

Win a Long Game on Waterworks on Suicidal Difficulty.

Unlocked by 253 tracked gamers (4% - TSA Ratio = 4.99)  

Floodgate to Hell54

Win a Long Game on Waterworks on Hell on Earth Difficulty.

Unlocked by 216 tracked gamers (3% - TSA Ratio = 5.39)  

Piece of Cake37

Complete all new map achievements on Normal Difficulty.

Unlocked by 468 tracked gamers (7% - TSA Ratio = 3.67)  

Pound Cake45

Complete all new map achievements on Hard Difficulty.

Unlocked by 309 tracked gamers (5% - TSA Ratio = 4.51)  

Fruit Cake54

Complete all new map achievements on Suicidal Difficulty.

Unlocked by 214 tracked gamers (3% - TSA Ratio = 5.43)  

Devil Cake58

Complete all new map achievements on Hell On Earth Difficulty.

Unlocked by 187 tracked gamers (3% - TSA Ratio = 5.81)  

Let Them Burn19

Get 1000 points of burn damage with the MAC-10.

Unlocked by 1,716 tracked gamers (27% - TSA Ratio = 1.91)  

Walking in A Winter Horror Land28

Win a Long Game on Santa's Evil Lair on Normal Difficulty.

Unlocked by 821 tracked gamers (13% - TSA Ratio = 2.77)  

Silent Night, Evil Night41

Win a Long Game on Santa's Evil Lair on Hard Difficulty.

Unlocked by 380 tracked gamers (6% - TSA Ratio = 4.07)  

I'm Dreaming of a Red Christmas50

Win a Long Game on Santa's Evil Lair on Suicidal Difficulty.

Unlocked by 250 tracked gamers (4% - TSA Ratio = 5.02)  

Grandma got Eaten by a Reindeer55

Win a Long Game on Santa's Evil Lair on Hell on Earth Difficulty.

Unlocked by 211 tracked gamers (3% - TSA Ratio = 5.46)  

Merry Friggin Christmas14

[2010 Xmas] Kill the Christmas Patriarch.

Unlocked by 3,417 tracked gamers (54% - TSA Ratio = 1.35)  

Cracked the Nutcracker!31

[2010 Xmas] Land the killing blow on a Christmas Fleshpound with a Knife.

Unlocked by 672 tracked gamers (11% - TSA Ratio = 3.06)  

Can't Catch Me!28

[2010 Xmas] Kill 2 Christmas Gorefasts with a Melee weapon from behind in one wave.

Unlocked by 794 tracked gamers (13% - TSA Ratio = 2.81)  

Toasted Jack Frost21

[2010 Xmas] Kill the Christmas Scrake with a Fire-based weapon.

Unlocked by 1,475 tracked gamers (23% - TSA Ratio = 2.06)  

That's not Santa!32

[2010 Xmas] Kill 3 Christmas Bloats with the Bullpup in one wave.

Unlocked by 621 tracked gamers (10% - TSA Ratio = 3.18)  

Rudolph, the Bloody Nosed Reindeer20

[2010 Xmas] Kill a Christmas Crawler with a Crossbow.

Unlocked by 1,635 tracked gamers (26% - TSA Ratio = 1.96)  

Not So Silent Night32

[2010 Xmas] Kill a Christmas Siren with an undetonated LAW rocket.

Unlocked by 605 tracked gamers (10% - TSA Ratio = 3.22)  

Fending off Mrs. Claws20

[2010 Xmas] Kill 3 Christmas Stalkers with a Lever Action Rifle without reloading.

Unlocked by 1,535 tracked gamers (24% - TSA Ratio = 2.02)  

Who Brings a Gun to a Snow Ball Fight?14

[2010 Xmas] Kill a Christmas Husk with any Pistol.

Unlocked by 3,361 tracked gamers (53% - TSA Ratio = 1.37)  

Deck the Halls with Buckets o' Blood20

[2010 Xmas] Kill 3 Christmas Zeds in 1 ZED time chain with a Melee weapon.

Unlocked by 1,624 tracked gamers (26% - TSA Ratio = 1.97)  

Tis Better to Give than to Receive35

[2010 Xmas] Drop 3 Tier 3 weapons for others (with which they kill at least one Christmas Zed).

Unlocked by 515 tracked gamers (8% - TSA Ratio = 3.50)  

Eggnog Anyone?21

[2010 Xmas] Get covered in Christmas Bloat Bile and live for 10 seconds on Hard, Suicidal, or Hell on Earth.

Unlocked by 1,490 tracked gamers (24% - TSA Ratio = 2.05)  

Bad Santa32

Unlock 10 of the 13 Christmas Achievements along with any Christmas Map achievement.

Unlocked by 631 tracked gamers (10% - TSA Ratio = 3.16)  

Back to Work15

[2010 Xmas] Kill 20 Christmas Clots in one wave.

Unlocked by 2,837 tracked gamers (45% - TSA Ratio = 1.49)  

Uber Tuber33

Expensive but delicious! Brought to you by Dr. Dougley and Lord Ned.

Unlocked by 573 tracked gamers (9% - TSA Ratio = 3.31)  

Science Got Done26

Win a Long Game on Aperture on Normal Difficulty.

Unlocked by 958 tracked gamers (15% - TSA Ratio = 2.56)  

Still Alive37

Win a Long Game on Aperture on Hard Difficulty.

Unlocked by 464 tracked gamers (7% - TSA Ratio = 3.68)  

This is a Triumph48

Win a Long Game on Aperture on Suicidal Difficulty.

Unlocked by 274 tracked gamers (4% - TSA Ratio = 4.80)  

I'm Making a Note Here, Huge Success52

Win a Long Game on Aperture on Hell on Earth Difficulty.

Unlocked by 232 tracked gamers (4% - TSA Ratio = 5.22)  

Golden Potato30

Get into GLaDOS' core on Aperture.

Unlocked by 682 tracked gamers (11% - TSA Ratio = 3.04)  

Flea Circus26

Win a Long Game on Abusement Park on Normal Difficulty.

Unlocked by 911 tracked gamers (14% - TSA Ratio = 2.63)  

Dog and Pony Show38

Win a Long Game on Abusement Park on Hard Difficulty.

Unlocked by 442 tracked gamers (7% - TSA Ratio = 3.77)  

3 Ring Circus48

Win a Long Game on Abusement Park on Suicidal Difficulty.

Unlocked by 270 tracked gamers (4% - TSA Ratio = 4.82)  

On Top of the Big Top51

Win a Long Game on Abusement Park on Hell on Earth Difficulty.

Unlocked by 244 tracked gamers (4% - TSA Ratio = 5.08)  

Ringmaster14

Kill the "Ring Leader" (Circus Patriarch)

Unlocked by 3,415 tracked gamers (54% - TSA Ratio = 1.35)  

Sparring with a Master16

Kill a Circus Gorefast with a Melee weapon.

Unlocked by 2,606 tracked gamers (41% - TSA Ratio = 1.55)  

Assistant Homicide28

Kill 2 Circus Stalkers with a Melee weapon to the back in one wave.

Unlocked by 825 tracked gamers (13% - TSA Ratio = 2.76)  

Seeing Double17

Kill 5 Circus Crawlers with a Bullpup in one wave.

Unlocked by 2,089 tracked gamers (33% - TSA Ratio = 1.73)  

Clearing Clown Alley15

Kill 5 Circus Bloats in one game.

Unlocked by 2,951 tracked gamers (47% - TSA Ratio = 1.46)  

The Big Hunt19

Kill a Circus Scrake with a Crossbow.

Unlocked by 1,668 tracked gamers (26% - TSA Ratio = 1.94)  

Lifting a Dumbell29

Kill a Circus Husk with a LAW.

Unlocked by 760 tracked gamers (12% - TSA Ratio = 2.88)  

Small Hands15

Kill 3 Circus Clots in a wave with the Lever Action Rifle.

Unlocked by 2,771 tracked gamers (44% - TSA Ratio = 1.50)  

Elephant Gun18

Land the killing blow on a Circus Fleshpound with a Pistol.

Unlocked by 1,963 tracked gamers (31% - TSA Ratio = 1.79)  

Juggling Act30

Drop 5 different Tier 2 weapons in one wave.

Unlocked by 702 tracked gamers (11% - TSA Ratio = 2.99)  

Windjammer Enthusiast20

Survive 10 seconds after being screamed at by a Circus Siren on Hard or above.

Unlocked by 1,654 tracked gamers (26% - TSA Ratio = 1.95)  

Taking Down the Big Top20

Kill 4 Circus Zeds in 1 ZED time chain with a Melee weapon.

Unlocked by 1,526 tracked gamers (24% - TSA Ratio = 2.03)  

Burning up the Midway20

Kill 10 Circus Clots with a Fire-based weapon.

Unlocked by 1,506 tracked gamers (24% - TSA Ratio = 2.04)  

Punk'd29

Unlock 10 of the 13 Circus Achievements along with any Abusement Park achievement.

Unlocked by 732 tracked gamers (12% - TSA Ratio = 2.93)  

Sparkling in the Twilight26

Kill The Vampire Patriarch Ringmaster in Bedlam

Unlocked by 907 tracked gamers (14% - TSA Ratio = 2.63)  

Carving The Jack O' Lantern27

Decapitate a burning Halloween specimen in Bedlam

Unlocked by 896 tracked gamers (14% - TSA Ratio = 2.65)  

The Scene is Zed28

Kill 250 Halloween Specimens in Bedlam

Unlocked by 790 tracked gamers (12% - TSA Ratio = 2.82)  

Zed October35

Win a Long Bedlam Match During the Halloween Event on Hard

Unlocked by 508 tracked gamers (8% - TSA Ratio = 3.52)  

This is No Ordinary Rabbit!37

Kill 25 Halloween Scrakes in Bedlam

Unlocked by 465 tracked gamers (7% - TSA Ratio = 3.68)  

Trick, not Treat13

Kill 5 Halloween Specimens with any gun without reloading

Unlocked by 3,752 tracked gamers (59% - TSA Ratio = 1.29)  

Rule The Roost38

Get all 6 achievements and unlock Commando Chicken

Unlocked by 443 tracked gamers (7% - TSA Ratio = 3.77)  

Burning Irony37

Kill 15 Husks with the Husk Cannon

Unlocked by 454 tracked gamers (7% - TSA Ratio = 3.73)  

Highlander32

Kill a Scrake, a Fleshpound, and the Patriarch with the Claymore Sword within one map

Unlocked by 614 tracked gamers (10% - TSA Ratio = 3.20)  

Bloody Yanks16

Kill 1 specimen ONLY while expending a full M4 Assault Rifle magazine

Unlocked by 2,356 tracked gamers (37% - TSA Ratio = 1.63)  

Finish Him31

Hit a Scrake with the M203 Rifle grenade to kill him

Unlocked by 644 tracked gamers (10% - TSA Ratio = 3.13)  

I love ze Healing not ze Hurting27

Heal others for 3000 points of health with the MP5 SMG

Unlocked by 856 tracked gamers (14% - TSA Ratio = 2.71)  

Italian Meat Pasta31

Kill 12 zeds with a full magazine from the Combat Shotgun

Unlocked by 650 tracked gamers (10% - TSA Ratio = 3.11)  

Feeling Lucky?21

Kill a specimen with every shot from your Revolver for one magazine

Unlocked by 1,375 tracked gamers (22% - TSA Ratio = 2.14)  

We Have Ourselves a Cowboy26

Hold dual 9mm, dual hand cannons and Dual Revolvers

Unlocked by 924 tracked gamers (15% - TSA Ratio = 2.61)  

Snow Cone28

Beat Ice Cave on Normal Difficulty

Unlocked by 787 tracked gamers (12% - TSA Ratio = 2.83)  

Stay Frosty39

Beat Ice Cave on Hard Difficulty

Unlocked by 412 tracked gamers (6% - TSA Ratio = 3.90)  

On the Rocks49

Beat Ice Cave on Suicidal Difficulty

Unlocked by 261 tracked gamers (4% - TSA Ratio = 4.92)  

Anti Freeze52

Beat Ice Cave on Hell on Earth Difficulty

Unlocked by 229 tracked gamers (4% - TSA Ratio = 5.24)  

A Bloody Christmas Carol13

Kill 15 XMas Clots, 5 xmas Stalkers, 5 XMas Crawlers, 1 XMas Siren and 1 XMas Bloat.

Unlocked by 3,794 tracked gamers (60% - TSA Ratio = 1.28)  

Spec Ops27

Kill 12 clots with one magazine without reloading (MK23)

Unlocked by 873 tracked gamers (14% - TSA Ratio = 2.68)  

Combat Medic21

Kill a zed that has injured a player (M7A3 rifle)

Unlocked by 1,486 tracked gamers (23% - TSA Ratio = 2.06)  

Fugly36

Kill one of each type of zed in one round (HSG Shotgun)

Unlocked by 484 tracked gamers (8% - TSA Ratio = 3.61)  

British Superiority17

Kill a zed each with both the Bullpup and FN-Fal

Unlocked by 2,062 tracked gamers (33% - TSA Ratio = 1.74)  

The Big One35

Kill 2 scrakes with one shot (M99)

Unlocked by 504 tracked gamers (8% - TSA Ratio = 3.53)  

Highway to Heaven30

Beat Hellride on Normal Difficulty

Unlocked by 691 tracked gamers (11% - TSA Ratio = 3.02)  

Stuck in Limbo41

Beat Hellride on Hard Difficulty

Unlocked by 379 tracked gamers (6% - TSA Ratio = 4.08)  

Demonic Road49

Beat Hellride on Suicidal Difficulty

Unlocked by 259 tracked gamers (4% - TSA Ratio = 4.93)  

Devil's Co-pilot54

Beat Hellride on Hell on Earth Difficulty

Unlocked by 220 tracked gamers (3% - TSA Ratio = 5.35)  

Historical Remnants17

Kill 6 Zeds with one magazine on an MKb42, without reloading

Unlocked by 2,089 tracked gamers (33% - TSA Ratio = 1.73)  

Nail'd!23

Kill 4 Stalkers in a game with the Vlad9000 Nailgun

Unlocked by 1,197 tracked gamers (19% - TSA Ratio = 2.29)  

Explosion of Love35

Heal yourself plus 5 other players with one grenade

Unlocked by 520 tracked gamers (8% - TSA Ratio = 3.48)  

Trench Warfare37

Set a total of 200 Zeds on fire with the Trench Gun in Hillbilly Horror

Unlocked by 457 tracked gamers (7% - TSA Ratio = 3.71)  

Third Cousins30

Beat Hillbilly Horror on Normal Difficulty

Unlocked by 718 tracked gamers (11% - TSA Ratio = 2.96)  

Second Cousins42

Beat Hillbilly Horror on Hard Difficulty

Unlocked by 353 tracked gamers (6% - TSA Ratio = 4.22)  

First Cousins (Once Removed)51

Beat Hillbilly Horror on Suicidal Difficulty

Unlocked by 246 tracked gamers (4% - TSA Ratio = 5.05)  

First Cousins54

Beat Hillbilly Horror on Hell on Earth Difficulty

Unlocked by 218 tracked gamers (3% - TSA Ratio = 5.37)  

Grim Reaper35

Get the 6 Special Halloween Achievements plus 1 Hillbilly Horror Map Achievement to unlock the Grim Reaper

Unlocked by 525 tracked gamers (8% - TSA Ratio = 3.46)  

Soul Collector29

Free the souls of the 25 Gnomes hidden on Hillbilly Horror in 1 game

Unlocked by 767 tracked gamers (12% - TSA Ratio = 2.86)  

Meet Your Maker!20

Kill 1000 Hillbilly Zeds

Unlocked by 1,630 tracked gamers (26% - TSA Ratio = 1.96)  

Creepy Crawlies26

Kill 15 Hillbilly Crawlers in 1 game with the Tommy Gun or MKb42

Unlocked by 929 tracked gamers (15% - TSA Ratio = 2.60)  

Rippin' It Up30

Kill a Hillbilly Husk and another Hillbilly Zed in the same shot with the Buzzsaw Bow or M99

Unlocked by 711 tracked gamers (11% - TSA Ratio = 2.97)  

I Am Become Death21

Kill 5 Hillbilly Zeds in 10 seconds with the Scythe or Axe

Unlocked by 1,399 tracked gamers (22% - TSA Ratio = 2.12)  

Fiery Personality23

Set 3 Hillbilly Gorefasts on fire with the Flare Pistol or Trench Gun

Unlocked by 1,151 tracked gamers (18% - TSA Ratio = 2.34)  

Have my axe45

Kill 30 Fleshpounds with the Dwarfs!? axe with back attacks

Unlocked by 317 tracked gamers (5% - TSA Ratio = 4.47)  

One Small Step for Man44

Kill 500 Zeds with the Schneidzekk Medic Gun while you are falling

Unlocked by 331 tracked gamers (5% - TSA Ratio = 4.36)  

But It's All Red!28

Collect all 16 Z.E.D. Gun pieces

Unlocked by 797 tracked gamers (13% - TSA Ratio = 2.81)  

Game Over, Man!35

Have 20 Zeds you slowed with the Z.E.D. gun killed

Unlocked by 517 tracked gamers (8% - TSA Ratio = 3.49)  

Here is to us27

Beat Moonbase on Normal Difficulty

Unlocked by 877 tracked gamers (14% - TSA Ratio = 2.68)  

Attempting Re-entry39

Beat Moonbase on Hard Difficulty

Unlocked by 422 tracked gamers (7% - TSA Ratio = 3.86)  

Amusing Death51

Beat Moonbase on Suicidal Difficulty

Unlocked by 241 tracked gamers (4% - TSA Ratio = 5.11)  

One Giant Leap (Back) for Mankind55

Beat Moonbase on Hell on Earth Difficulty

Unlocked by 213 tracked gamers (3% - TSA Ratio = 5.45)  

Gimli That Axe!34

Get the Not-a-war-hammer Achievement in Dwarfs!?

Unlocked by 563 tracked gamers (9% - TSA Ratio = 3.35)  

Astro Buffer Afficiando32

Beat Steamland on Normal Difficulty

Unlocked by 636 tracked gamers (10% - TSA Ratio = 3.15)  

Modified Psychoacceleration Achiever42

Beat Steamland on Hard Difficulty

Unlocked by 355 tracked gamers (6% - TSA Ratio = 4.21)  

Fractional Neutron Activator52

Beat Steamland on Suicidal Difficulty

Unlocked by 235 tracked gamers (4% - TSA Ratio = 5.18)  

Advanced Omega Wave Resonance Explorer54

Beat Steamland on Hell on Earth Difficulty

Unlocked by 217 tracked gamers (3% - TSA Ratio = 5.38)  

Simplified Force Adhesion Afficianado32

Beat Steamland in Objective Mode on Normal Difficulty

Unlocked by 623 tracked gamers (10% - TSA Ratio = 3.18)  

Oscillating Hydrogen Transition Achiever48

Beat Steamland in Objective Mode on Hard Difficulty

Unlocked by 271 tracked gamers (4% - TSA Ratio = 4.82)  

Alpha Wave Osteooxidation Activator56

Beat Steamland in Objective Mode on Suicidal Difficulty

Unlocked by 199 tracked gamers (3% - TSA Ratio = 5.62)  

Tachyon Cytoneutralization Explorer59

Beat Steamland in Objective Mode on Hell on Earth Difficulty

Unlocked by 178 tracked gamers (3% - TSA Ratio = 5.94)  

Hide and go Puke34

[2013 Summer] Destroy all the Pukey the Clown dolls

Unlocked by 560 tracked gamers (9% - TSA Ratio = 3.35)  

Arcade Gamer32

[2013 Summer] Complete the Pop the Clot, the Strong Man and the Grenade Toss games

Unlocked by 606 tracked gamers (10% - TSA Ratio = 3.22)  

Full Charge32

Have 5 Breaker Boxes 100% repaired at the same time

Unlocked by 611 tracked gamers (10% - TSA Ratio = 3.21)  

Extended Motion Protector33

[2013 Summer] Protect the Ringmaster during the escort mission so that he does not get hit more than 15 times

Unlocked by 566 tracked gamers (9% - TSA Ratio = 3.33)  

Guardian Assault Protector27

Protect the ringmaster during the defense mission so that he does not get hit more than 15 times

Unlocked by 835 tracked gamers (13% - TSA Ratio = 2.74)  

Golden 3 Crown Note37

Get all 3 gold bars without the carriers taking damage while they have them

Unlocked by 461 tracked gamers (7% - TSA Ratio = 3.70)  

Single-shot Equalizer26

Kill 4 different types of Zeds with headshots with 4 shots from the Long Musket or the M14 without reloading

Unlocked by 934 tracked gamers (15% - TSA Ratio = 2.59)  

Assault Flayer Ordinance22

Push a scrake back with the direct fire from a Hunting Shotgun or alt fire from the Multi-Chamber ZED Thrower

Unlocked by 1,352 tracked gamers (21% - TSA Ratio = 2.16)  

Single-Load Doom Bombardier21

Kill a ZED with a direct (unexploded) shot from the Orca Bomb Propeller or the M-79/M32

Unlocked by 1,452 tracked gamers (23% - TSA Ratio = 2.08)  

Turbo Executioner34

Kill 5 zeds in ZED time without reloading with Dr. T's LDS or Bullpup

Unlocked by 539 tracked gamers (9% - TSA Ratio = 3.42)  

Mrs. Punkd38

Get 4 of 6 of the 2013 Summer Event in-game level Achievements, one Standard and one Objective Mode map completion Achievement, plus the Punk'd Achievement to unlock Steampunk Mrs. Foster

Unlocked by 425 tracked gamers (7% - TSA Ratio = 3.84)  

Longshoreman34

Beat Fright Yard on Normal Difficulty

Unlocked by 551 tracked gamers (9% - TSA Ratio = 3.38)  

Gang Crew43

Beat Fright Yard on Hard Difficulty

Unlocked by 345 tracked gamers (5% - TSA Ratio = 4.27)  

Stevedore52

Beat Fright Yard on Suicidal Difficulty

Unlocked by 237 tracked gamers (4% - TSA Ratio = 5.15)  

Wharfinger54

Beat Fright Yard on Hell on Earth Difficulty

Unlocked by 213 tracked gamers (3% - TSA Ratio = 5.43)  

Fork Lift Operator39

Beat Fright Yard in Objective Mode on Normal Difficulty

Unlocked by 424 tracked gamers (7% - TSA Ratio = 3.85)  

Truck Driver50

Beat Fright Yard in Objective Mode on Hard Difficulty

Unlocked by 253 tracked gamers (4% - TSA Ratio = 4.98)  

Crane Operator59

Beat Fright Yard in Objective Mode on Suicidal Difficulty

Unlocked by 182 tracked gamers (3% - TSA Ratio = 5.88)  

Shipping Magnate60

Beat Fright Yard in Objective Mode on Hell on Earth Difficulty

Unlocked by 175 tracked gamers (3% - TSA Ratio = 5.99)  

Claw Machine Master33

Attach the crane hook within 125 seconds

Unlocked by 571 tracked gamers (9% - TSA Ratio = 3.32)  

Ex-scientist35

Collect all the bile without a contamination

Unlocked by 507 tracked gamers (8% - TSA Ratio = 3.52)  

77744

Win Fuel on the first try

Unlocked by 327 tracked gamers (5% - TSA Ratio = 4.38)  

Blinding Big Brother39

Destroy all 30 Cameras

Unlocked by 424 tracked gamers (7% - TSA Ratio = 3.85)  

Fire and Forget41

Kill a Halloween Fleshpound and Scrake in the same explosion with the Seal Squeal Harpoon Bomber or the LAW

Unlocked by 373 tracked gamers (6% - TSA Ratio = 4.12)  

Under The Weather38

Use Bile or the Flamethrower to kill one of each Halloween Zed

Unlocked by 442 tracked gamers (7% - TSA Ratio = 3.78)  

Most Bang for the Buck33

Kill 10 Halloween zeds in explosions using the Seeker 6 or the M32 within 5 seconds

Unlocked by 587 tracked gamers (9% - TSA Ratio = 3.28)  

Death34

Beat Hell on Normal Difficulty

Unlocked by 537 tracked gamers (8% - TSA Ratio = 3.43)  

King Minos46

Beat Hell on Hard Difficulty

Unlocked by 304 tracked gamers (5% - TSA Ratio = 4.55)  

Cerberus52

Beat Hell on Suicidal Difficulty

Unlocked by 234 tracked gamers (4% - TSA Ratio = 5.18)  

Lucifer56

Beat Hell on Hell on Earth Difficulty

Unlocked by 204 tracked gamers (3% - TSA Ratio = 5.55)  

Brain Fart36

Beat Forgotten on Normal Difficulty

Unlocked by 500 tracked gamers (8% - TSA Ratio = 3.55)  

Agnosia46

Beat Forgotten on Hard Difficulty

Unlocked by 304 tracked gamers (5% - TSA Ratio = 4.55)  

Amnesia54

Beat Forgotten on Suicidal Difficulty

Unlocked by 219 tracked gamers (3% - TSA Ratio = 5.37)  

Dementia56

Beat Forgotten on Hell on Earth Difficulty

Unlocked by 199 tracked gamers (3% - TSA Ratio = 5.62)  

No Time for Love, Dr. Jones46

Win a short round on KF-Hell playing as or with Harchier Spebbington

Unlocked by 293 tracked gamers (5% - TSA Ratio = 4.63)  

Home Brewer38

Beat Siren's Belch on Normal Difficulty

Unlocked by 437 tracked gamers (7% - TSA Ratio = 3.80)  

Micro Brewer46

Beat Siren's Belch on Hard Difficulty

Unlocked by 297 tracked gamers (5% - TSA Ratio = 4.61)  

Master Brewer54

Beat Siren's Belch on Suicidal Difficulty

Unlocked by 220 tracked gamers (3% - TSA Ratio = 5.36)  

Trappist Monk57

Beat Siren's Belch on Hell on Earth Difficulty

Unlocked by 195 tracked gamers (3% - TSA Ratio = 5.68)  

Oktoberfest Master41

Collect all the Beer Steins

Unlocked by 373 tracked gamers (6% - TSA Ratio = 4.11)  

Peasant39

Beat Stronghold on Normal Difficulty

Unlocked by 408 tracked gamers (6% - TSA Ratio = 3.93)  

Squire47

Beat Stronghold on Hard Difficulty

Unlocked by 281 tracked gamers (4% - TSA Ratio = 4.74)  

Prince55

Beat Stronghold on Suicidal Difficulty

Unlocked by 209 tracked gamers (3% - TSA Ratio = 5.48)  

King57

Beat Stronghold on Hell on Earth Difficulty

Unlocked by 193 tracked gamers (3% - TSA Ratio = 5.71)  

Rich Evil Uncle45

Collect all the Treasure Bags

Unlocked by 308 tracked gamers (5% - TSA Ratio = 4.52)  

Cattle Class38

Beat Transit on Normal Difficulty

Unlocked by 427 tracked gamers (7% - TSA Ratio = 3.84)  

Economy Comfort45

Beat Transit on Hard Difficulty

Unlocked by 305 tracked gamers (5% - TSA Ratio = 4.54)  

Business Class54

Beat Transit on Suicidal Difficulty

Unlocked by 219 tracked gamers (3% - TSA Ratio = 5.37)  

First Class55

Beat Transit on Hell on Earth Difficulty

Unlocked by 206 tracked gamers (3% - TSA Ratio = 5.52)  

Day-trip41

Beat Transit in Objective Mode on Normal Difficulty

Unlocked by 380 tracked gamers (6% - TSA Ratio = 4.07)  

Long weekend47

Beat Transit in Objective Mode on Hard Difficulty

Unlocked by 286 tracked gamers (5% - TSA Ratio = 4.70)  

Serious vacation57

Beat Transit in Objective Mode on Suicidal Difficulty

Unlocked by 191 tracked gamers (3% - TSA Ratio = 5.74)  

Moved to Paris!60

Beat Transit in Objective Mode on Hell on Earth Difficulty

Unlocked by 178 tracked gamers (3% - TSA Ratio = 5.99)  

Nitro Boost!36

Transit - Get the Nitro to the Objective in 135 seconds or less

Unlocked by 481 tracked gamers (8% - TSA Ratio = 3.62)  

Totally Metal34

Transit - Kill 250 Zeds before completing the welding objective

Unlocked by 559 tracked gamers (9% - TSA Ratio = 3.36)  

Multi-pass27

Transit - Pick up the door key

Unlocked by 893 tracked gamers (14% - TSA Ratio = 2.66)  

Science Hater36

Transit - Destroy all the DNA vials

Unlocked by 484 tracked gamers (8% - TSA Ratio = 3.61)  

Doctor WHO??47

Transit - Get all Objective achievements AND beat KFO Transit on Hard or above to unlock Dr Rachel Clamely.

Unlocked by 287 tracked gamers (5% - TSA Ratio = 4.70)  

Gone clubbing40

Beat Clandestine on Normal Difficulty

Unlocked by 389 tracked gamers (6% - TSA Ratio = 4.03)  

Rack 'em up49

Beat Clandestine on Hard Difficulty

Unlocked by 261 tracked gamers (4% - TSA Ratio = 4.92)  

Burned out55

Beat Clandestine on Suicidal Difficulty

Unlocked by 206 tracked gamers (3% - TSA Ratio = 5.54)  

Hangover from Hell57

Beat Clandestine on Hell Difficulty

Unlocked by 192 tracked gamers (3% - TSA Ratio = 5.72)  

Skull Cracker43

Clandestine - Destroy 30 skulls

Unlocked by 336 tracked gamers (5% - TSA Ratio = 4.34)  

Cave of Wonder40

Beat ThrillsChills on Normal Difficulty

Unlocked by 385 tracked gamers (6% - TSA Ratio = 4.04)  

Cavern of Pain48

Beat ThrillsChills on Hard Difficulty

Unlocked by 280 tracked gamers (4% - TSA Ratio = 4.75)  

Grotto of Terror56

Beat ThrillsChills on Suicidal Difficulty

Unlocked by 201 tracked gamers (3% - TSA Ratio = 5.59)  

Hollow of Horror58

Beat ThrillsChills on Hell Difficulty

Unlocked by 189 tracked gamers (3% - TSA Ratio = 5.77)  

All shook up40

Destroy all (15) Snow Globes

Unlocked by 398 tracked gamers (6% - TSA Ratio = 3.98)