Over 9000 Zombies! achievements

22.55%
Slay zombie Duke of Wellington!
The army of the undead will march at daybreak!
22.55%
Slay Zombie Thomas Jefferson!
Vote for Zombie Thomas Jefferson, or don't.
22.55%
Terrible.. terrible.. DAMAGE!
Get 15,000 damage per second!
24.51%
Slay zombie Tchaikovsky!
Derail the Waltz of the Undead!
24.51%
Broken Wings!
Kill over 1000 zombie crows!
24.51%
Survivor: Day 15
A jail is an isolated system.
24.51%
Survivor: Day 17
Terror possessed me then!
24.51%
Survivor: Day 16
If only he had the body of a horse...
24.51%
Slay zombie Sibelius!
No 8th symphony for zombie Sibelius!
26.47%
Slay zombie Mannerheim!
Voted the greatest zombie of all time!
26.47%
Survivor: Day 14
Blood and Flesh can be trusted.
26.47%
Safety in Numbers!
Participate in a multiplayer game.