Beginner
First kill a zombie
90 ✓ December 1st, 2023
100.0% · Common
Zombie eliminator
Kill 200 zombies
100 82.5% · Common
Arsenal
Unlock a weapon
90 87.5% · Common
Friendly man
Unlock a buddy
90 81.2% · Common
Zombie killer
Kill 25 zombies
90 96.4% · Common
Zombie hunter
Kill 50 zombies
90 94.2% · Common
Zombie destroyer
Kill 100 zombies
90 89.6% · Common
Robot killer
First kill a robot
90 76.3% · Common
Robot hunter
Kill 3 robots
90 70.3% · Common
Robot destroyer
Kill 5 robots
90 68.0% · Common
Researcher
Discovered research evidence for the first time
90 92.0% · Common