You can get Zombucks:
- after reaching certain levels;
- for completing different tasks;
- for opening daily bonus gift box;
- by upgrading special buildings on some islands;
- for unlocking achievements;
- by making a purchase.
- after reaching certain levels;
- for completing different tasks;
- for opening daily bonus gift box;
- by upgrading special buildings on some islands;
- for unlocking achievements;
- by making a purchase.