Mad Props

A full 3D physics sandbox where knowledge builds everything — literally. Answer questions from the shared question bank to earn gold, then spend it on props, welds, ropes, thrusters, balloons and a gloriously goofy arsenal (rubber chicken launcher included). Three ways to play: free-build Sandbox with co-op rooms, Siege mode defending your Snack Stash from Homework Golems and the Principal Mecha, and hand-crafted Missions with par times. 21 worlds, 20+ enemies, real physics, zero seriousness.