Prevent the bots reaching the exit door, don't let 'em escape from their ship.
Stack the blocks to blockade their path and kill 'em all with the turret and available gunner blocks.

Features:
1. 18 levels
2. Various block types
3. 8 types of enemies, plus one deadly Boss
4. 7 special items.
5. Upgradeable items and blocks

Controls:
1. Mouse to place the block, select item, aim, and shoot the enemies
2. A & D keyboard keys to pan the camera
3. 1 - 7 keyboard numeric keys to activate items
4. ESC key to cancel item activation