Killing Floor achievements
10,355
(2,850)

Killing Floor

3.7 out of 5 from 173 votes

There are 285 Killing Floor achievements worth 10,355

6,089 tracked gamers have this game, 89 have completed it (1.46%)

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Killing Floor Achievements

Pub Crawl18

Win a Long Game on West London on Normal Difficulty.

Unlocked by 1,824 tracked gamers (30% - TSA Ratio = 1.81)  

Lord of the Manor22

Win a Long Game on Manor on Normal Difficulty.

Unlocked by 1,290 tracked gamers (21% - TSA Ratio = 2.16)  

Lab Cleaner20

Win a Long Game on Biotics Lab on Normal Difficulty.

Unlocked by 1,482 tracked gamers (24% - TSA Ratio = 2.01)  

Chicken Farmer22

Win a Long Game on Farm on Normal Difficulty.

Unlocked by 1,244 tracked gamers (20% - TSA Ratio = 2.19)  

The Boss22

Win a Long Game on Offices on Normal Difficulty.

Unlocked by 1,221 tracked gamers (20% - TSA Ratio = 2.21)  

The Long War26

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

Unlocked by 858 tracked gamers (14% - TSA Ratio = 2.64)  

Experimenticenticide11

Kill 100 Specimens.

Unlocked by 5,340 tracked gamers (87% - TSA Ratio = 1.06)  

Fascist Dietitian20

Kill 200 Bloats.

Unlocked by 1,502 tracked gamers (24% - TSA Ratio = 1.99)  

Homer's Heroes18

Kill 100 Sirens.

Unlocked by 1,868 tracked gamers (30% - TSA Ratio = 1.79)  

Keep Those Sneakers Off the Floor!20

Kill 20 Stalkers with Explosives.

Unlocked by 1,489 tracked gamers (24% - TSA Ratio = 2.00)  

Random Axe of Kindness17

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

Unlocked by 2,158 tracked gamers (35% - TSA Ratio = 1.67)  

Bitter Irony26

Kill 2 Scrakes with a Chainsaw in a Single Wave.

Unlocked by 919 tracked gamers (15% - TSA Ratio = 2.55)  

Hot Cross Fun29

Kill 25 Burning Specimens with a Crossbow.

Unlocked by 728 tracked gamers (12% - TSA Ratio = 2.87)  

Dignity for the Dead46

Kill 10 Specimens Feeding on Dead Teammates Corpses.

Unlocked by 289 tracked gamers (5% - TSA Ratio = 4.57)  

Social Outburst12

Kill 8 Specimens with One Grenade.

Unlocked by 3,985 tracked gamers (65% - TSA Ratio = 1.22)  

Careful Spender19

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

Unlocked by 1,674 tracked gamers (27% - TSA Ratio = 1.89)  

It's Not Easy Being Greasy11

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

Unlocked by 5,179 tracked gamers (84% - TSA Ratio = 1.07)  

Too Close For Comfort17

Finish off a Fleshpound using a Melee Attack.

Unlocked by 2,013 tracked gamers (33% - TSA Ratio = 1.72)  

Master Surgeon22

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

Unlocked by 1,270 tracked gamers (21% - TSA Ratio = 2.17)  

It's What's Inside That Counts21

Turn 500 Specimens into Giblets.

Unlocked by 1,343 tracked gamers (22% - TSA Ratio = 2.11)  

Quarter Pounder With Ease20

Turn 5 Fleshpounds into Giblets.

Unlocked by 1,531 tracked gamers (25% - TSA Ratio = 1.98)  

Self Medicator15

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

Unlocked by 2,508 tracked gamers (41% - TSA Ratio = 1.54)  

Thin-Ice Pirouette26

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

Unlocked by 864 tracked gamers (14% - TSA Ratio = 2.63)  

Philanthropist14

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

Unlocked by 2,915 tracked gamers (47% - TSA Ratio = 1.43)  

I Like To Watch16

Aquire 5 Minutes of "Zed-Time".

Unlocked by 2,447 tracked gamers (40% - TSA Ratio = 1.56)  

Mr. Perky39

Get All of your Perks up to Level 5.

Unlocked by 404 tracked gamers (7% - TSA Ratio = 3.86)  

Straight Rush13

Kill the Patriarch Before he has a Chance to Heal.

Unlocked by 3,355 tracked gamers (54% - TSA Ratio = 1.33)  

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 1,452 tracked gamers (24% - TSA Ratio = 2.03)  

Death To The Mad Scientist30

Defeat the Patriarch on Suicidal.

Unlocked by 680 tracked gamers (11% - TSA Ratio = 2.97)  

Experimentimillicide14

Kill 1,000 Specimens.

Unlocked by 3,296 tracked gamers (53% - TSA Ratio = 1.35)  

Experimentilottacide22

Kill 10,000 Specimens.

Unlocked by 1,286 tracked gamers (21% - TSA Ratio = 2.16)  

Hard Pub Crawl28

Win a Long Game on West London on Hard Difficulty.

Unlocked by 765 tracked gamers (12% - TSA Ratio = 2.80)  

Duke of the Manor32

Win a Long Game on Manor on Hard Difficulty.

Unlocked by 601 tracked gamers (10% - TSA Ratio = 3.16)  

Cattle Farmer33

Win a Long Game on Farm on Hard Difficulty.

Unlocked by 548 tracked gamers (9% - TSA Ratio = 3.31)  

Hard Boss34

Win a Long Game on Offices on Hard Difficulty.

Unlocked by 528 tracked gamers (9% - TSA Ratio = 3.37)  

Lab Assistant29

Win a Long Game on Biotics Lab on Hard Difficulty.

Unlocked by 707 tracked gamers (11% - TSA Ratio = 2.91)  

The Hard War38

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

Unlocked by 424 tracked gamers (7% - TSA Ratio = 3.76)  

Suicidal Pub Crawl42

Win a Long Game on West London on Suicidal Difficulty.

Unlocked by 341 tracked gamers (6% - TSA Ratio = 4.20)  

Emperor of the Manor44

Win a Long Game on Manor on Suicidal Difficulty.

Unlocked by 306 tracked gamers (5% - TSA Ratio = 4.43)  

Alligator Farmer45

Win a Long Game on Farm on Suicidal Difficulty.

Unlocked by 303 tracked gamers (5% - TSA Ratio = 4.46)  

Mad Boss45

Win a Long Game on Offices on Suicidal Difficulty.

Unlocked by 296 tracked gamers (5% - TSA Ratio = 4.51)  

Lab Professor43

Win a Long Game on Biotics Lab on Suicidal Difficulty.

Unlocked by 332 tracked gamers (5% - TSA Ratio = 4.27)  

The Completely Suicidal War48

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

Unlocked by 258 tracked gamers (4% - TSA Ratio = 4.83)  

Tin Man27

Win a Long Game on Foundry, on Normal Difficulty.

Unlocked by 839 tracked gamers (14% - TSA Ratio = 2.67)  

Steel Worker36

Win a Long Game on Foundry, on Hard Difficulty.

Unlocked by 466 tracked gamers (8% - TSA Ratio = 3.59)  

Man of Steel47

Win a Long Game on Foundry, on Suicidal Difficulty.

Unlocked by 278 tracked gamers (5% - TSA Ratio = 4.65)  

A Bit Barmy27

Win a Long Game on Bedlam, on Normal Difficulty.

Unlocked by 814 tracked gamers (13% - TSA Ratio = 2.71)  

Gone Mental33

Win a Long Game on Bedlam, on Hard Difficulty.

Unlocked by 545 tracked gamers (9% - TSA Ratio = 3.32)  

Complete Barking48

Win a Long Game on Bedlam, on Suicidal Difficulty.

Unlocked by 265 tracked gamers (4% - TSA Ratio = 4.76)  

Squirrel King of the Dark Forest28

Win a Long Game on Wyre, on Normal Difficulty.

Unlocked by 771 tracked gamers (13% - TSA Ratio = 2.79)  

Raccoon King of the Dark Forest38

Win a Long Game on Wyre, on Hard Difficulty.

Unlocked by 428 tracked gamers (7% - TSA Ratio = 3.75)  

Bear King of the Dark Forest48

Win a Long Game on Wyre, on Suicidal Difficulty.

Unlocked by 258 tracked gamers (4% - TSA Ratio = 4.83)  

Long, Hot Summer32

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

Unlocked by 580 tracked gamers (9% - TSA Ratio = 3.22)  

Summer of 200941

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

Unlocked by 365 tracked gamers (6% - TSA Ratio = 4.05)  

And Back to School51

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

Unlocked by 235 tracked gamers (4% - TSA Ratio = 5.06)  

Explosive Personality39

As Demolitions, kill 1000 Specimens with the Pipebomb.

Unlocked by 394 tracked gamers (6% - TSA Ratio = 3.91)  

Flaming Hell, That was Close20

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

Unlocked by 1,555 tracked gamers (25% - TSA Ratio = 1.96)  

Merry Men28

Kill the Patriarch when everyone is ONLY using Crossbows.

Unlocked by 742 tracked gamers (12% - TSA Ratio = 2.84)  

Blooper Reel30

Turn 500 Zeds into Giblets using the M79.

Unlocked by 671 tracked gamers (11% - TSA Ratio = 2.99)  

Dot of Doom37

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

Unlocked by 441 tracked gamers (7% - TSA Ratio = 3.69)  

SCAR'd29

Kill 1000 Specimens with the SCAR.

Unlocked by 693 tracked gamers (11% - TSA Ratio = 2.94)  

Healing Touch29

Heal 200 teammates with the MP7's medication dart.

Unlocked by 725 tracked gamers (12% - TSA Ratio = 2.88)  

Pound This34

Kill 100 Fleshpounds with the AA12.

Unlocked by 531 tracked gamers (9% - TSA Ratio = 3.36)  

Killer Junior28

Kill 20 crawlers in mid-air with the M79.

Unlocked by 746 tracked gamers (12% - TSA Ratio = 2.83)  

Getting Chunky21

Obliterate 10 Zeds at once with the Pipe Bomb.

Unlocked by 1,415 tracked gamers (23% - TSA Ratio = 2.06)  

Hellish Pub Crawl49

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

Unlocked by 247 tracked gamers (4% - TSA Ratio = 4.94)  

Demonic King of the Manor52

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

Unlocked by 223 tracked gamers (4% - TSA Ratio = 5.21)  

Demon Farmer52

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

Unlocked by 227 tracked gamers (4% - TSA Ratio = 5.16)  

Boss from Hell52

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

Unlocked by 222 tracked gamers (4% - TSA Ratio = 5.22)  

Scientist from Hell49

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

Unlocked by 251 tracked gamers (4% - TSA Ratio = 4.92)  

Diablo Steel Man53

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

Unlocked by 215 tracked gamers (3% - TSA Ratio = 5.29)  

Commit-ed for life53

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

Unlocked by 215 tracked gamers (3% - TSA Ratio = 5.31)  

Wolf King of the Dark Forest54

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

Unlocked by 204 tracked gamers (3% - TSA Ratio = 5.44)  

Waste Disposal29

Win a Long Game on Biohazard on Normal Difficulty.

Unlocked by 696 tracked gamers (11% - TSA Ratio = 2.93)  

Waste Land38

Win a Long Game on Biohazard on Hard Difficulty.

Unlocked by 415 tracked gamers (7% - TSA Ratio = 3.80)  

Waste of Space49

Win a Long Game on Biohazard on Suicidal Difficulty.

Unlocked by 252 tracked gamers (4% - TSA Ratio = 4.89)  

Wasted52

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

Unlocked by 222 tracked gamers (4% - TSA Ratio = 5.21)  

Warehouse Janitor27

Win a Long Game on Crash on Normal Difficulty.

Unlocked by 826 tracked gamers (13% - TSA Ratio = 2.69)  

Warehouse Forklift Operator37

Win a Long Game on Crash on Hard Difficulty.

Unlocked by 437 tracked gamers (7% - TSA Ratio = 3.71)  

Warehouse Foreman48

Win a Long Game on Crash on Suicidal Difficulty.

Unlocked by 261 tracked gamers (4% - TSA Ratio = 4.81)  

Warehouse Manager54

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

Unlocked by 209 tracked gamers (3% - TSA Ratio = 5.37)  

Departure Gallery28

Win a Long Game on Departed on Normal Difficulty.

Unlocked by 783 tracked gamers (13% - TSA Ratio = 2.77)  

Departure Lounge38

Win a Long Game on Departed on Hard Difficulty.

Unlocked by 427 tracked gamers (7% - TSA Ratio = 3.76)  

Departure Gate48

Win a Long Game on Departed on Suicidal Difficulty.

Unlocked by 262 tracked gamers (4% - TSA Ratio = 4.80)  

Dear Departed53

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

Unlocked by 217 tracked gamers (4% - TSA Ratio = 5.27)  

Running Late30

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

Unlocked by 666 tracked gamers (11% - TSA Ratio = 3.00)  

Missed Connection40

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

Unlocked by 379 tracked gamers (6% - TSA Ratio = 3.98)  

Train Wreck50

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

Unlocked by 238 tracked gamers (4% - TSA Ratio = 5.03)  

Pile Up54

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

Unlocked by 204 tracked gamers (3% - TSA Ratio = 5.44)  

Gimme a Plaster!31

Win a Long Game on Hospital Horrors on Normal Difficulty.

Unlocked by 633 tracked gamers (10% - TSA Ratio = 3.08)  

That Bloody Well Hurts!42

Win a Long Game on Hospital Horrors on Hard Difficulty.

Unlocked by 350 tracked gamers (6% - TSA Ratio = 4.15)  

I'm Dying Here!50

Win a Long Game on Hospital Horrors on Suicidal Difficulty.

Unlocked by 238 tracked gamers (4% - TSA Ratio = 5.03)  

Not Dead Yet!53

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

Unlocked by 214 tracked gamers (3% - TSA Ratio = 5.31)  

Ice Cube30

Win a Long Game on Icebreaker on Normal Difficulty.

Unlocked by 651 tracked gamers (11% - TSA Ratio = 3.03)  

Crushed Ice40

Win a Long Game on Icebreaker on Hard Difficulty.

Unlocked by 378 tracked gamers (6% - TSA Ratio = 3.98)  

Iceberg51

Win a Long Game on Icebreaker on Suicidal Difficulty.

Unlocked by 235 tracked gamers (4% - TSA Ratio = 5.06)  

Comet55

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

Unlocked by 200 tracked gamers (3% - TSA Ratio = 5.51)  

Daytrip23

Win a Long Game on Mountain Pass on Normal Difficulty.

Unlocked by 1,147 tracked gamers (19% - TSA Ratio = 2.29)  

Gone Camping33

Win a Long Game on Mountain Pass on Hard Difficulty.

Unlocked by 562 tracked gamers (9% - TSA Ratio = 3.26)  

Mountaineer47

Win a Long Game on Mountain Pass on Suicidal Difficulty.

Unlocked by 277 tracked gamers (4% - TSA Ratio = 4.66)  

Park Ranger51

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

Unlocked by 230 tracked gamers (4% - TSA Ratio = 5.12)  

Neighborhood Watch30

Win a Long Game on Suburbia on Normal Difficulty.

Unlocked by 654 tracked gamers (11% - TSA Ratio = 3.03)  

Private Security40

Win a Long Game on Suburbia on Hard Difficulty.

Unlocked by 372 tracked gamers (6% - TSA Ratio = 4.02)  

Vigilante51

Win a Long Game on Suburbia on Suicidal Difficulty.

Unlocked by 232 tracked gamers (4% - TSA Ratio = 5.09)  

SWAT55

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

Unlocked by 200 tracked gamers (3% - TSA Ratio = 5.49)  

Slight Drip29

Win a Long Game on Waterworks on Normal Difficulty.

Unlocked by 703 tracked gamers (11% - TSA Ratio = 2.92)  

Burst Pipe39

Win a Long Game on Waterworks on Hard Difficulty.

Unlocked by 391 tracked gamers (6% - TSA Ratio = 3.92)  

Pressure Failure50

Win a Long Game on Waterworks on Suicidal Difficulty.

Unlocked by 237 tracked gamers (4% - TSA Ratio = 5.04)  

Floodgate to Hell55

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

Unlocked by 203 tracked gamers (3% - TSA Ratio = 5.45)  

Piece of Cake37

Complete all new map achievements on Normal Difficulty.

Unlocked by 444 tracked gamers (7% - TSA Ratio = 3.68)  

Pound Cake45

Complete all new map achievements on Hard Difficulty.

Unlocked by 293 tracked gamers (5% - TSA Ratio = 4.53)  

Fruit Cake55

Complete all new map achievements on Suicidal Difficulty.

Unlocked by 199 tracked gamers (3% - TSA Ratio = 5.51)  

Devil Cake59

Complete all new map achievements on Hell On Earth Difficulty.

Unlocked by 174 tracked gamers (3% - TSA Ratio = 5.89)  

Let Them Burn19

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

Unlocked by 1,639 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 781 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 360 tracked gamers (6% - TSA Ratio = 4.09)  

I'm Dreaming of a Red Christmas51

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

Unlocked by 229 tracked gamers (4% - TSA Ratio = 5.13)  

Grandma got Eaten by a Reindeer56

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

Unlocked by 194 tracked gamers (3% - TSA Ratio = 5.58)  

Merry Friggin Christmas14

[2010 Xmas] Kill the Christmas Patriarch.

Unlocked by 3,273 tracked gamers (53% - TSA Ratio = 1.35)  

Cracked the Nutcracker!31

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

Unlocked by 636 tracked gamers (10% - TSA Ratio = 3.07)  

Can't Catch Me!28

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

Unlocked by 746 tracked gamers (12% - TSA Ratio = 2.84)  

Toasted Jack Frost21

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

Unlocked by 1,413 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 590 tracked gamers (10% - TSA Ratio = 3.18)  

Rudolph, the Bloody Nosed Reindeer20

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

Unlocked by 1,562 tracked gamers (25% - TSA Ratio = 1.96)  

Not So Silent Night32

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

Unlocked by 575 tracked gamers (9% - TSA Ratio = 3.23)  

Fending off Mrs. Claws20

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

Unlocked by 1,475 tracked gamers (24% - TSA Ratio = 2.01)  

Who Brings a Gun to a Snow Ball Fight?14

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

Unlocked by 3,211 tracked gamers (52% - TSA Ratio = 1.36)  

Deck the Halls with Buckets o' Blood20

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

Unlocked by 1,541 tracked gamers (25% - 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 483 tracked gamers (8% - TSA Ratio = 3.52)  

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 1,421 tracked gamers (23% - TSA Ratio = 2.05)  

Bad Santa32

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

Unlocked by 594 tracked gamers (10% - TSA Ratio = 3.18)  

Back to Work15

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

Unlocked by 2,708 tracked gamers (44% - TSA Ratio = 1.49)  

Uber Tuber33

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

Unlocked by 543 tracked gamers (9% - TSA Ratio = 3.33)  

Science Got Done26

Win a Long Game on Aperture on Normal Difficulty.

Unlocked by 914 tracked gamers (15% - TSA Ratio = 2.56)  

Still Alive37

Win a Long Game on Aperture on Hard Difficulty.

Unlocked by 437 tracked gamers (7% - TSA Ratio = 3.71)  

This is a Triumph49

Win a Long Game on Aperture on Suicidal Difficulty.

Unlocked by 257 tracked gamers (4% - TSA Ratio = 4.85)  

I'm Making a Note Here, Huge Success53

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

Unlocked by 214 tracked gamers (3% - TSA Ratio = 5.32)  

Golden Potato31

Get into GLaDOS' core on Aperture.

Unlocked by 644 tracked gamers (10% - TSA Ratio = 3.05)  

Flea Circus26

Win a Long Game on Abusement Park on Normal Difficulty.

Unlocked by 868 tracked gamers (14% - TSA Ratio = 2.63)  

Dog and Pony Show38

Win a Long Game on Abusement Park on Hard Difficulty.

Unlocked by 419 tracked gamers (7% - TSA Ratio = 3.79)  

3 Ring Circus49

Win a Long Game on Abusement Park on Suicidal Difficulty.

Unlocked by 252 tracked gamers (4% - TSA Ratio = 4.89)  

On Top of the Big Top52

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

Unlocked by 225 tracked gamers (4% - TSA Ratio = 5.17)  

Ringmaster14

Kill the "Ring Leader" (Circus Patriarch)

Unlocked by 3,276 tracked gamers (53% - TSA Ratio = 1.35)  

Sparring with a Master16

Kill a Circus Gorefast with a Melee weapon.

Unlocked by 2,492 tracked gamers (40% - TSA Ratio = 1.55)  

Assistant Homicide28

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

Unlocked by 783 tracked gamers (13% - TSA Ratio = 2.77)  

Seeing Double17

Kill 5 Circus Crawlers with a Bullpup in one wave.

Unlocked by 1,992 tracked gamers (32% - TSA Ratio = 1.73)  

Clearing Clown Alley15

Kill 5 Circus Bloats in one game.

Unlocked by 2,819 tracked gamers (46% - TSA Ratio = 1.46)  

The Big Hunt19

Kill a Circus Scrake with a Crossbow.

Unlocked by 1,588 tracked gamers (26% - TSA Ratio = 1.94)  

Lifting a Dumbell29

Kill a Circus Husk with a LAW.

Unlocked by 722 tracked gamers (12% - TSA Ratio = 2.88)  

Small Hands15

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

Unlocked by 2,636 tracked gamers (43% - TSA Ratio = 1.50)  

Elephant Gun18

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

Unlocked by 1,872 tracked gamers (30% - TSA Ratio = 1.79)  

Juggling Act30

Drop 5 different Tier 2 weapons in one wave.

Unlocked by 664 tracked gamers (11% - TSA Ratio = 3.00)  

Windjammer Enthusiast19

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

Unlocked by 1,587 tracked gamers (26% - TSA Ratio = 1.94)  

Taking Down the Big Top20

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

Unlocked by 1,446 tracked gamers (23% - TSA Ratio = 2.04)  

Burning up the Midway20

Kill 10 Circus Clots with a Fire-based weapon.

Unlocked by 1,437 tracked gamers (23% - TSA Ratio = 2.04)  

Punk'd29

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

Unlocked by 696 tracked gamers (11% - TSA Ratio = 2.94)  

Sparkling in the Twilight26

Kill The Vampire Patriarch Ringmaster in Bedlam

Unlocked by 860 tracked gamers (14% - TSA Ratio = 2.64)  

Carving The Jack O' Lantern27

Decapitate a burning Halloween specimen in Bedlam

Unlocked by 854 tracked gamers (14% - TSA Ratio = 2.65)  

The Scene is Zed28

Kill 250 Halloween Specimens in Bedlam

Unlocked by 746 tracked gamers (12% - TSA Ratio = 2.84)  

Zed October35

Win a Long Bedlam Match During the Halloween Event on Hard

Unlocked by 479 tracked gamers (8% - TSA Ratio = 3.54)  

This is No Ordinary Rabbit!37

Kill 25 Halloween Scrakes in Bedlam

Unlocked by 435 tracked gamers (7% - TSA Ratio = 3.71)  

Trick, not Treat13

Kill 5 Halloween Specimens with any gun without reloading

Unlocked by 3,581 tracked gamers (58% - TSA Ratio = 1.29)  

Rule The Roost38

Get all 6 achievements and unlock Commando Chicken

Unlocked by 414 tracked gamers (7% - TSA Ratio = 3.81)  

Burning Irony37

Kill 15 Husks with the Husk Cannon

Unlocked by 430 tracked gamers (7% - TSA Ratio = 3.74)  

Highlander32

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

Unlocked by 579 tracked gamers (9% - TSA Ratio = 3.22)  

Bloody Yanks16

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

Unlocked by 2,268 tracked gamers (37% - TSA Ratio = 1.62)  

Finish Him31

Hit a Scrake with the M203 Rifle grenade to kill him

Unlocked by 610 tracked gamers (10% - TSA Ratio = 3.14)  

I love ze Healing not ze Hurting27

Heal others for 3000 points of health with the MP5 SMG

Unlocked by 812 tracked gamers (13% - TSA Ratio = 2.72)  

Italian Meat Pasta31

Kill 12 zeds with a full magazine from the Combat Shotgun

Unlocked by 615 tracked gamers (10% - TSA Ratio = 3.12)  

Feeling Lucky?21

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

Unlocked by 1,312 tracked gamers (21% - TSA Ratio = 2.14)  

We Have Ourselves a Cowboy26

Hold dual 9mm, dual hand cannons and Dual Revolvers

Unlocked by 881 tracked gamers (14% - TSA Ratio = 2.61)  

Snow Cone28

Beat Ice Cave on Normal Difficulty

Unlocked by 753 tracked gamers (12% - TSA Ratio = 2.82)  

Stay Frosty39

Beat Ice Cave on Hard Difficulty

Unlocked by 391 tracked gamers (6% - TSA Ratio = 3.92)  

On the Rocks50

Beat Ice Cave on Suicidal Difficulty

Unlocked by 242 tracked gamers (4% - TSA Ratio = 4.99)  

Anti Freeze53

Beat Ice Cave on Hell on Earth Difficulty

Unlocked by 214 tracked gamers (3% - TSA Ratio = 5.31)  

A Bloody Christmas Carol13

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

Unlocked by 3,633 tracked gamers (59% - TSA Ratio = 1.28)  

Spec Ops27

Kill 12 clots with one magazine without reloading (MK23)

Unlocked by 832 tracked gamers (13% - TSA Ratio = 2.68)  

Combat Medic21

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

Unlocked by 1,419 tracked gamers (23% - TSA Ratio = 2.06)  

Fugly36

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

Unlocked by 454 tracked gamers (7% - TSA Ratio = 3.63)  

British Superiority17

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

Unlocked by 1,969 tracked gamers (32% - TSA Ratio = 1.74)  

The Big One36

Kill 2 scrakes with one shot (M99)

Unlocked by 475 tracked gamers (8% - TSA Ratio = 3.55)  

Highway to Heaven30

Beat Hellride on Normal Difficulty

Unlocked by 667 tracked gamers (11% - TSA Ratio = 3.00)  

Stuck in Limbo41

Beat Hellride on Hard Difficulty

Unlocked by 355 tracked gamers (6% - TSA Ratio = 4.11)  

Demonic Road50

Beat Hellride on Suicidal Difficulty

Unlocked by 239 tracked gamers (4% - TSA Ratio = 5.02)  

Devil's Co-pilot55

Beat Hellride on Hell on Earth Difficulty

Unlocked by 203 tracked gamers (3% - TSA Ratio = 5.46)  

Historical Remnants17

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

Unlocked by 1,998 tracked gamers (32% - TSA Ratio = 1.73)  

Nail'd!23

Kill 4 Stalkers in a game with the Vlad9000 Nailgun

Unlocked by 1,137 tracked gamers (18% - TSA Ratio = 2.29)  

Explosion of Love35

Heal yourself plus 5 other players with one grenade

Unlocked by 489 tracked gamers (8% - TSA Ratio = 3.52)  

Trench Warfare37

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

Unlocked by 433 tracked gamers (7% - TSA Ratio = 3.72)  

Third Cousins30

Beat Hillbilly Horror on Normal Difficulty

Unlocked by 684 tracked gamers (11% - TSA Ratio = 2.96)  

Second Cousins43

Beat Hillbilly Horror on Hard Difficulty

Unlocked by 334 tracked gamers (5% - TSA Ratio = 4.25)  

First Cousins (Once Removed)52

Beat Hillbilly Horror on Suicidal Difficulty

Unlocked by 226 tracked gamers (4% - TSA Ratio = 5.16)  

First Cousins55

Beat Hillbilly Horror on Hell on Earth Difficulty

Unlocked by 202 tracked gamers (3% - TSA Ratio = 5.46)  

Grim Reaper35

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

Unlocked by 494 tracked gamers (8% - TSA Ratio = 3.48)  

Soul Collector29

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

Unlocked by 727 tracked gamers (12% - TSA Ratio = 2.87)  

Meet Your Maker!20

Kill 1000 Hillbilly Zeds

Unlocked by 1,544 tracked gamers (25% - TSA Ratio = 1.97)  

Creepy Crawlies26

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

Unlocked by 880 tracked gamers (14% - TSA Ratio = 2.61)  

Rippin' It Up30

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

Unlocked by 672 tracked gamers (11% - TSA Ratio = 2.99)  

I Am Become Death21

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

Unlocked by 1,325 tracked gamers (21% - TSA Ratio = 2.13)  

Fiery Personality23

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

Unlocked by 1,095 tracked gamers (18% - TSA Ratio = 2.34)  

Have my axe45

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

Unlocked by 300 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 312 tracked gamers (5% - TSA Ratio = 4.39)  

But It's All Red!28

Collect all 16 Z.E.D. Gun pieces

Unlocked by 760 tracked gamers (12% - TSA Ratio = 2.82)  

Game Over, Man!35

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

Unlocked by 488 tracked gamers (8% - TSA Ratio = 3.51)  

Here is to us27

Beat Moonbase on Normal Difficulty

Unlocked by 838 tracked gamers (14% - TSA Ratio = 2.67)  

Attempting Re-entry39

Beat Moonbase on Hard Difficulty

Unlocked by 400 tracked gamers (6% - TSA Ratio = 3.87)  

Amusing Death52

Beat Moonbase on Suicidal Difficulty

Unlocked by 222 tracked gamers (4% - TSA Ratio = 5.21)  

One Giant Leap (Back) for Mankind56

Beat Moonbase on Hell on Earth Difficulty

Unlocked by 194 tracked gamers (3% - TSA Ratio = 5.58)  

Gimli That Axe!34

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

Unlocked by 534 tracked gamers (9% - TSA Ratio = 3.35)  

Astro Buffer Afficiando31

Beat Steamland on Normal Difficulty

Unlocked by 608 tracked gamers (10% - TSA Ratio = 3.14)  

Modified Psychoacceleration Achiever43

Beat Steamland on Hard Difficulty

Unlocked by 334 tracked gamers (5% - TSA Ratio = 4.25)  

Fractional Neutron Activator53

Beat Steamland on Suicidal Difficulty

Unlocked by 214 tracked gamers (3% - TSA Ratio = 5.32)  

Advanced Omega Wave Resonance Explorer55

Beat Steamland on Hell on Earth Difficulty

Unlocked by 201 tracked gamers (3% - TSA Ratio = 5.49)  

Simplified Force Adhesion Afficianado32

Beat Steamland in Objective Mode on Normal Difficulty

Unlocked by 589 tracked gamers (10% - TSA Ratio = 3.20)  

Oscillating Hydrogen Transition Achiever49

Beat Steamland in Objective Mode on Hard Difficulty

Unlocked by 253 tracked gamers (4% - TSA Ratio = 4.89)  

Alpha Wave Osteooxidation Activator58

Beat Steamland in Objective Mode on Suicidal Difficulty

Unlocked by 182 tracked gamers (3% - TSA Ratio = 5.78)  

Tachyon Cytoneutralization Explorer61

Beat Steamland in Objective Mode on Hell on Earth Difficulty

Unlocked by 163 tracked gamers (3% - TSA Ratio = 6.11)  

Hide and go Puke34

[2013 Summer] Destroy all the Pukey the Clown dolls

Unlocked by 528 tracked gamers (9% - TSA Ratio = 3.37)  

Arcade Gamer32

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

Unlocked by 572 tracked gamers (9% - TSA Ratio = 3.24)  

Full Charge32

Have 5 Breaker Boxes 100% repaired at the same time

Unlocked by 582 tracked gamers (9% - 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 540 tracked gamers (9% - TSA Ratio = 3.34)  

Guardian Assault Protector28

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

Unlocked by 795 tracked gamers (13% - TSA Ratio = 2.75)  

Golden 3 Crown Note37

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

Unlocked by 437 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 883 tracked gamers (14% - TSA Ratio = 2.61)  

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 1,285 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 1,375 tracked gamers (22% - TSA Ratio = 2.09)  

Turbo Executioner34

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

Unlocked by 509 tracked gamers (8% - TSA Ratio = 3.43)  

Mrs. Punkd39

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 402 tracked gamers (7% - TSA Ratio = 3.87)  

Longshoreman34

Beat Fright Yard on Normal Difficulty

Unlocked by 527 tracked gamers (9% - TSA Ratio = 3.38)  

Gang Crew43

Beat Fright Yard on Hard Difficulty

Unlocked by 325 tracked gamers (5% - TSA Ratio = 4.31)  

Stevedore52

Beat Fright Yard on Suicidal Difficulty

Unlocked by 222 tracked gamers (4% - TSA Ratio = 5.22)  

Wharfinger56

Beat Fright Yard on Hell on Earth Difficulty

Unlocked by 197 tracked gamers (3% - TSA Ratio = 5.56)  

Fork Lift Operator39

Beat Fright Yard in Objective Mode on Normal Difficulty

Unlocked by 401 tracked gamers (7% - TSA Ratio = 3.87)  

Truck Driver51

Beat Fright Yard in Objective Mode on Hard Difficulty

Unlocked by 234 tracked gamers (4% - TSA Ratio = 5.07)  

Crane Operator60

Beat Fright Yard in Objective Mode on Suicidal Difficulty

Unlocked by 166 tracked gamers (3% - TSA Ratio = 6.03)  

Shipping Magnate61

Beat Fright Yard in Objective Mode on Hell on Earth Difficulty

Unlocked by 161 tracked gamers (3% - TSA Ratio = 6.13)  

Claw Machine Master34

Attach the crane hook within 125 seconds

Unlocked by 537 tracked gamers (9% - TSA Ratio = 3.35)  

Ex-scientist35

Collect all the bile without a contamination

Unlocked by 478 tracked gamers (8% - TSA Ratio = 3.54)  

77745

Win Fuel on the first try

Unlocked by 305 tracked gamers (5% - TSA Ratio = 4.45)  

Blinding Big Brother39

Destroy all 30 Cameras

Unlocked by 398 tracked gamers (6% - TSA Ratio = 3.89)  

Fire and Forget42

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

Unlocked by 347 tracked gamers (6% - TSA Ratio = 4.17)  

Under The Weather38

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

Unlocked by 411 tracked gamers (7% - TSA Ratio = 3.82)  

Most Bang for the Buck33

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

Unlocked by 557 tracked gamers (9% - TSA Ratio = 3.29)  

Death34

Beat Hell on Normal Difficulty

Unlocked by 508 tracked gamers (8% - TSA Ratio = 3.44)  

King Minos46

Beat Hell on Hard Difficulty

Unlocked by 286 tracked gamers (5% - TSA Ratio = 4.60)  

Cerberus53

Beat Hell on Suicidal Difficulty

Unlocked by 215 tracked gamers (3% - TSA Ratio = 5.31)  

Lucifer57

Beat Hell on Hell on Earth Difficulty

Unlocked by 188 tracked gamers (3% - TSA Ratio = 5.68)  

Brain Fart36

Beat Forgotten on Normal Difficulty

Unlocked by 473 tracked gamers (8% - TSA Ratio = 3.56)  

Agnosia46

Beat Forgotten on Hard Difficulty

Unlocked by 283 tracked gamers (5% - TSA Ratio = 4.61)  

Amnesia55

Beat Forgotten on Suicidal Difficulty

Unlocked by 199 tracked gamers (3% - TSA Ratio = 5.51)  

Dementia58

Beat Forgotten on Hell on Earth Difficulty

Unlocked by 182 tracked gamers (3% - TSA Ratio = 5.76)  

No Time for Love, Dr. Jones47

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

Unlocked by 276 tracked gamers (4% - TSA Ratio = 4.67)  

Home Brewer38

Beat Siren's Belch on Normal Difficulty

Unlocked by 410 tracked gamers (7% - TSA Ratio = 3.83)  

Micro Brewer47

Beat Siren's Belch on Hard Difficulty

Unlocked by 277 tracked gamers (4% - TSA Ratio = 4.67)  

Master Brewer55

Beat Siren's Belch on Suicidal Difficulty

Unlocked by 201 tracked gamers (3% - TSA Ratio = 5.51)  

Trappist Monk58

Beat Siren's Belch on Hell on Earth Difficulty

Unlocked by 181 tracked gamers (3% - TSA Ratio = 5.79)  

Oktoberfest Master42

Collect all the Beer Steins

Unlocked by 348 tracked gamers (6% - TSA Ratio = 4.16)  

Peasant40

Beat Stronghold on Normal Difficulty

Unlocked by 382 tracked gamers (6% - TSA Ratio = 3.97)  

Squire48

Beat Stronghold on Hard Difficulty

Unlocked by 261 tracked gamers (4% - TSA Ratio = 4.80)  

Prince56

Beat Stronghold on Suicidal Difficulty

Unlocked by 192 tracked gamers (3% - TSA Ratio = 5.61)  

King59

Beat Stronghold on Hell on Earth Difficulty

Unlocked by 176 tracked gamers (3% - TSA Ratio = 5.86)  

Rich Evil Uncle46

Collect all the Treasure Bags

Unlocked by 287 tracked gamers (5% - TSA Ratio = 4.59)  

Cattle Class39

Beat Transit on Normal Difficulty

Unlocked by 400 tracked gamers (6% - TSA Ratio = 3.88)  

Economy Comfort46

Beat Transit on Hard Difficulty

Unlocked by 282 tracked gamers (5% - TSA Ratio = 4.62)  

Business Class55

Beat Transit on Suicidal Difficulty

Unlocked by 200 tracked gamers (3% - TSA Ratio = 5.49)  

First Class56

Beat Transit on Hell on Earth Difficulty

Unlocked by 191 tracked gamers (3% - TSA Ratio = 5.62)  

Day-trip41

Beat Transit in Objective Mode on Normal Difficulty

Unlocked by 357 tracked gamers (6% - TSA Ratio = 4.11)  

Long weekend48

Beat Transit in Objective Mode on Hard Difficulty

Unlocked by 266 tracked gamers (4% - TSA Ratio = 4.76)  

Serious vacation59

Beat Transit in Objective Mode on Suicidal Difficulty

Unlocked by 175 tracked gamers (3% - TSA Ratio = 5.88)  

Moved to Paris!61

Beat Transit in Objective Mode on Hell on Earth Difficulty

Unlocked by 164 tracked gamers (3% - TSA Ratio = 6.07)  

Nitro Boost!37

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

Unlocked by 452 tracked gamers (7% - TSA Ratio = 3.65)  

Totally Metal34

Transit - Kill 250 Zeds before completing the welding objective

Unlocked by 527 tracked gamers (9% - TSA Ratio = 3.38)  

Multi-pass27

Transit - Pick up the door key

Unlocked by 840 tracked gamers (14% - TSA Ratio = 2.67)  

Science Hater37

Transit - Destroy all the DNA vials

Unlocked by 454 tracked gamers (7% - TSA Ratio = 3.65)  

Doctor WHO??48

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

Unlocked by 266 tracked gamers (4% - TSA Ratio = 4.76)  

Gone clubbing41

Beat Clandestine on Normal Difficulty

Unlocked by 364 tracked gamers (6% - TSA Ratio = 4.07)  

Rack 'em up50

Beat Clandestine on Hard Difficulty

Unlocked by 242 tracked gamers (4% - TSA Ratio = 5.00)  

Burned out56

Beat Clandestine on Suicidal Difficulty

Unlocked by 190 tracked gamers (3% - TSA Ratio = 5.64)  

Hangover from Hell58

Beat Clandestine on Hell Difficulty

Unlocked by 178 tracked gamers (3% - TSA Ratio = 5.83)  

Skull Cracker44

Clandestine - Destroy 30 skulls

Unlocked by 309 tracked gamers (5% - TSA Ratio = 4.42)  

Cave of Wonder41

Beat ThrillsChills on Normal Difficulty

Unlocked by 361 tracked gamers (6% - TSA Ratio = 4.10)  

Cavern of Pain48

Beat ThrillsChills on Hard Difficulty

Unlocked by 260 tracked gamers (4% - TSA Ratio = 4.82)  

Grotto of Terror57

Beat ThrillsChills on Suicidal Difficulty

Unlocked by 186 tracked gamers (3% - TSA Ratio = 5.71)  

Hollow of Horror59

Beat ThrillsChills on Hell Difficulty

Unlocked by 176 tracked gamers (3% - TSA Ratio = 5.89)  

All shook up40

Destroy all (15) Snow Globes

Unlocked by 370 tracked gamers (6% - TSA Ratio = 4.04)