Anniversary of the dead
Complete the Final Day, in either Single or Multiplayer, and finish the game
45 ✓ November 30th, 2010
A Week To Live
Complete 7 days in any game mode without dying
25 ✓ November 29th, 2010
Hotter Than Hell
Complete the final day of the "7 Days of Hell" unlockable mode
25 ✓ November 30th, 2010
Can't Touch This
Rack up a 100x multiplier in any game mode
20 ✓ November 30th, 2010
Friends in Low Places
Save 25 survivors in any game mode
20 ✓ November 29th, 2010
Interior Decorator
Kill 25 zombies in any game mode using environmental hazards
20 ✓ November 29th, 2010
Tour of the City
Complete each arena at least once in the same game in any game mode
15 ✓ November 29th, 2010
More the Merrier
Kill 10 or more zombies at the same time in any game mode
10 ✓ November 29th, 2010
Environmental Awareness
Kill a zombie using an environmental hazard in any game mode
5 ✓ November 29th, 2010
Gas Powered
Complete an entire arena, getting every kill with the Chainsaw
5 ✓ November 29th, 2010
Gun Shop
Kill at least one zombie with each weapon type in any game mode
5 ✓ November 30th, 2010
Socialite
Play in an online multiplayer game
5 ✓ November 29th, 2010