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Shelldiver: best for a cozy dive game built for a controller
Platform: Steam · paid
Shelldiver is a cozy incremental about a senior turtle starting a jellyfish business. You pilot a little submarine, collect jellyfish and ocean junk, sell the haul, upgrade your gear and dive into deeper biomes.
It is Verified, with full controller support, and it passed every one of Valve's checks: controls, button glyphs, legible text and performance. It also has 98% positive from 4,766 Steam reviews and no DLC.
Watch out for: It is short and more active than idle. Think of it as a cozy collecting game for a few evenings, not a months-long idler.













