Killing Floor achievements

4.56%

Long weekend

Beat Transit in Objective Mode on Hard Difficulty

4.56%

I'm Making a Note Here, Huge Success

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

4.56%

Oktoberfest Master

Collect all the Beer Steins

4.56%

And Back to School

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

4.56%

I'm Dreaming of a Red Christmas

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

4.59%

Diablo Steel Man

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

4.59%

Oscillating Hydrogen Transition Achiever

Beat Steamland in Objective Mode on Hard Difficulty

4.59%

Vigilante

Win a Long Game on Suburbia on Suicidal Difficulty.

4.62%

King Minos

Beat Hell on Hard Difficulty

4.62%

On the Rocks

Beat Ice Cave on Suicidal Difficulty

4.65%

Train Wreck

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

4.65%

Dear Departed

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