Here is the full list of all 65 Killing Floor Beta achievements.
Win a Long Game on West London on Normal Difficulty.
Win a Long Game on Manor on Normal Difficulty.
Win a Long Game on Biotics Lab on Normal Difficulty.
Win a Long Game on Farm on Normal Difficulty.
Win a Long Game on Offices on Normal Difficulty.
Complete a Long Game on all 5 Core Maps on Normal Difficulty.
Kill 100 Specimens.
Kill 200 Bloats.
Kill 100 Sirens.
Kill 20 Stalkers with Explosives.
Kill 15 Specimens with a Fire Axe in a Single Wave.
Kill 2 Scrakes with a Chainsaw in a Single Wave.
Kill 25 Burning Specimens with a Crossbow.
Kill 10 Specimens Feeding on Dead Teammates Corpses.
Kill 8 Specimens with One Grenade.
Kill 4 Specimens with a Single Shot from a Hunting Shotgun.
Cause a Specimen to Die by Luring them into Bloat Acid.
Finish off a Fleshpound using a Melee Attack.
As a Medic, Kill 8 Specimens using a Knife in a Single Wave.
Turn 500 Specimens into Giblets.
Turn 5 Fleshpounds into Giblets.
In Co-op Mode, Use Syringe on Yourself 100 Times.
Complete 10 Waves when the Rest of your Team has Died.
Give 1,000 Pounds to Teammates who have 50% of Your Cash or Less.
Aquire 5 Minutes of "Zed-Time".
Get All of your Perks up to Level 5.
Kill the Patriarch Before he has a Chance to Heal.
Deliver the Killing Blow to the Patriarch with a L.A.W. Rocket.
Defeat the Patriarch on Suicidal.
Kill 1,000 Specimens.
Kill 10,000 Specimens.
Win a Long Game on West London on Hard Difficulty.
Win a Long Game on Manor on Hard Difficulty.
Win a Long Game on Farm on Hard Difficulty.
Win a Long Game on Offices on Hard Difficulty.
Win a Long Game on Biotics Lab on Hard Difficulty.
Complete a Long Game on all 5 Core Maps on Hard Difficulty.
Win a Long Game on West London on Suicidal Difficulty.
Win a Long Game on Manor on Suicidal Difficulty.
Win a Long Game on Farm on Suicidal Difficulty.
Win a Long Game on Offices on Suicidal Difficulty.
Win a Long Game on Biotics Lab on Suicidal Difficulty.
Complete a Long Game on all 5 Core Maps on Suicidal Difficulty.
Win a Long Game on Foundry, on Normal Difficulty.
Win a Long Game on Foundry, on Hard Difficulty.
Win a Long Game on Foundry, on Suicidal Difficulty.
Win a Long Game on Bedlam, on Normal Difficulty.
Win a Long Game on Bedlam, on Hard Difficulty.
Win a Long Game on Bedlam, on Suicidal Difficulty.
Win a Long Game on Wyre, on Normal Difficulty.
Win a Long Game on Wyre, on Hard Difficulty.
Win a Long Game on Wyre, on Suicidal Difficulty.
Complete a Long Game on all 3 Summer 2009 maps on Normal Difficulty.
Complete a Long Game on all 3 Summer 2009 maps on Hard Difficulty.
Complete a Long Game on all 3 Summer 2009 maps on Suicidal Difficulty.
As Demolitions, kill 1000 Specimens with the Pipebomb.
As Firebug, kill the Husk with the Flamethrower before he hurts anyone.
Kill the Patriarch when everyone is ONLY using Crossbows.
Turn 500 Zeds into Giblets using the M79.
Get 25 headshots in a row with the EBR while using the Laser Sight.
Kill 1000 Specimens with the SCAR.
Heal 200 teammates with the MP7's medication dart.
Kill 100 Fleshpounds with the AA12.
Kill 20 crawlers in mid-air with the M79.
Obliterate 10 Zeds at once with the Pipe Bomb.