Using keyboard shortcuts is critical for managing your base efficiently. : Build Base T : Crystal Mine
The game is divided into cycles. During the day, you must expand your base and build infrastructure. At night, zombies spawn and attack your buildings; every 10 waves, a powerful boss appears.
: Mined from deposits. Used to make Cannonballs (at a factory) or Steel .
: Upgrade single building / Upgrade all buildings of the same type