Oni Onsen Polyamory
This DLC gives you a chance to date all four Oni at once! Engage in a mutual polyamorous relationship with all four Oni where they're devoted to you, BUT ALSO EACH OTHER!
| Type | DLC |
| Developer | Y Press Games |
| Publisher | Y Press Games |
| Last Updated | 9/9/2025 |
| Steam App Id | 3183130 |
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About Oni Onsen Polyamory
Oni Onsen Polyamory is a Simulation DLC developed by Y Press Games. It was released on the Steam Store by Y Press Games. Oni Onsen Polyamory can be played and ran on Windows, Mac, and Linux systems. At the moment, there is no confirmed information regarding Steam Deck support for this dlc app.
According to Steam’s category system, Oni Onsen Polyamory supports the following features:
- Downloadable Content
- Single-player
- Family Sharing
DLC & Related Apps
Oni Onsen Polyamory is referenced by 1 other related app in the Steam Store.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Oni Onsen | Game | 8/19/2025 | Steam Charts |