Also known as Hot Springs | 温泉 (Onsen), hot springs onsen, hot-springs-onsen
This is a simple idle game with productivity tools, relaxing minigames, and decor options, all centered around the serene theme of an onsen (Japanese hot spring).
Update: We completed the migration to the new server on February 10, 2026. From now on, all of your online data will continue to be stored and handled on the new server. Hello everyone, this is an important announcement…
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Top picks from 40 Steam achievements, sorted by player unlock rates.
