Supraland Six Inches Under continues the toybox-world metroidvania formula, sending players into an underground setting filled with new puzzles, gadgets, and areas to uncover. As before, gaining new tools opens up previously inaccessible parts of the map, encouraging exploration and backtracking.

It builds on the mechanics of the original game with a fresh cast and setting, appealing to players who enjoyed the first game's mix of combat, puzzle-solving, and toy-scale world design and want more of the same style of discovery.