Slow Fuel

Slow Fuel is a puzzle game where you drop square objects (Fuel blocks) from the left and right sides into a central tank to fill it to capacity. The game features three difficulty courses—Short (100 fills), Basic (500 fills), and Hard (500 fills)—plus an RPG mode. Players use only the mouse to swap incoming Fuel blocks and manage special items like a glass cannon that temporarily increases Fuel count. The game has no story and features autosave only. Speedrunners can complete a hard course in about 12 minutes.