The Trivial Dead

Use a 50/50 killstreak.

LockedSteam

Kill all zombies in one round of shooting.

LockedSteam

Win a game with Art & Leisure as your best subject.

LockedSteam

Kill 10 zombies in End game.

LockedSteam

Start a game with Brutal difficulty.

LockedSteam

Win a game with Brutal difficulty.

LockedSteam

Kill 20 zombies with a machine gun in one game.

LockedSteam

Use a Cheat killstreak.

LockedSteam

Win a game with Entertainment as your best subject.

LockedSteam

Kill 30 zombies with grenades in one match.

LockedSteam

Win a game of multiple waves with all team members alive.

LockedSteam

Win a game with Geography as your best subject.

LockedSteam

Wait for a Hint.

LockedSteam

Kill 15 zombies with grenades in one match.

LockedSteam

Win a game with History as your best subject.

LockedSteam

Start a match in Endless mode.

LockedSteam

Get your first killstreak.

LockedSteam

Get 50 killstreaks.

LockedSteam

Get 20 killstreaks.

LockedSteam

Kill a total of 500 Zombies.

LockedSteam

Kill a total of 2500 Zombies.

LockedSteam

Kill a total of 1000 Zombies.

LockedSteam

Use a "Lucky Shot" achievement to avoid all misses in a round.

LockedSteam

Answer a question with only one second remaining on the clock.

LockedSteam

Answer a question correctly with only one second remaining on the clock.

LockedSteam

Win a game with People as your best subject.

LockedSteam

Win a game with Science & Nature as your best subject.

LockedSteam

Start a game on Easy difficulty.

LockedSteam

Win a game with Sports as your best subject.

LockedSteam

Complete a whole game without getting a single question wrong.

LockedSteam

Miss 10 zombies, but manage to hit one thanks to Lucky Shot killstreak.

LockedSteam

Take 20 seconds to answer a question and get it right!

LockedSteam