Pick 4 chassis and 3 weapons. Build only from your loadout. Bosses arrive every few waves. New waves begin only after the last enemy is cleared. End of each wave: bank earns 20% interest. Anti-monoculture: stacking the same weapon type reduces efficiency.
Map
Chassis 0/4
Weapons 0/3
Controls: click empty space to place. Click tower to select. Upgrade button or U upgrades selected tower. Sell button or S or right click tower to sell. Q/E cycle chassis. 1-3 select weapon. [ / ] or - / + to change speed. Space or ⏸ button to pause. ↺ button or R to restart.