Idle Offworld Foundry is an idle factory game welded to a puzzle collection, set on a Moon being turned into a colony by lowest-bid machines that break constantly, and fixing them is the game. When a machine faults, a bite-sized puzzle opens: circuits, ciphers, match-3, pipe-routing, logic grids, or nonograms, plus a late-game mode where faults gang up and the player must deduce which machine is responsible. The supply chain spans seven stages from launch pad to a self-sustaining colony, ending when the colony builds and launches its own rocket from ground the player dug, refined, and fabricated.