The Mining Colony tool is an ability unique to races which follow the Miner philosophy. When the tool is activated it cashes in all built turret slots, moves the walls out further, and lays down the same amount of building 'hotspots' around the old colony. The player can then build double the usual amount of buildings, but no turrets may be constructed. A planet composed solely of Mining Colonies will have a maximum amount of spice set at 30 units, unless Spice Storage is used bringing the total to 45 units.