File:20xFloatstoneBE.png Floatstone is a strategic resource used in levitating units in the late game phase. It's visible from the beginning of the game, and is accessed with a Floatstone Quarry. It has special uses for Purity-aligned factions. David McDonough states, "(the Purity player) specializes in the float-stone, and they figure out how to mill it into a particular kind of ore that they can use to levitate truly massive objects. Their highest levels are the LEV-Tanks and the LEV-Destroyer, which is essentially a battleship that flies."