Welcome to the end
Not unlocked yetStart the game.
Counterattack!
Not unlocked yetDefeat the zombies.
The beginning of despair
Not unlocked yetEncountered the zombie rush.
Friends from today
Not unlocked yetFeed the sisters to the zombies at least once.
Hope for Survival
Not unlocked yetEncountered the sister time.
Zombie Crusher
Not unlocked yetEncountered the zombie rush more than 10 times.
Hope Creator
Not unlocked yetEncountered the sister time more than 10 times.
Sister's Breeder Reactor
Not unlocked yetContinue the sister time at least 5 times.
Survival Master
Not unlocked yetSurvives for more than 300 days.
Crazy Bomber
Not unlocked yetUse more than 30 bombs in a one game.
