With the recent success of Minecraft and Terraria as verification, it’s clear that many gamers still have a hunger for construction. We’ve seen the recreation of worlds, as well as a fully functional computer made in Minecraft. And while its tool set isn’t quite as robust, some incredible castles have been erected in Terraria. But most everything made in these games are stationary. While immobility certainly doesn’t make these towering constructive achievements any less impressive, wouldn’t it be fun to create something that moves? Something that moves high above the clouds? Kerbal Space Program’s developer “Squad” thought so.