Topaz is an in-development arcade game for PC & mobile phones.

Box in your enemies.

Use swipe gestures, the arrow keys, or WASD to push blocks around the field to create 3x3 cages for the enemies (red robots). Pressing Space or holding down the screen will drop a land mine. Do it again and the mine will explode, stunning any enemies caught in the blast radius. The player gets one back for each level completed.