Choose Starless Umbra
Choose Starless Umbra if you want an Adventure game with Multi-player, Shared/Split Screen, and Shared/Split Screen Co-op. On Steam, it has co-op, so you can bring a friend.
Starless Umbra vs ONI-WARDEN
Starless Umbra and ONI-WARDEN both land in Action, Indie, RPG on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both share Action, Indie, RPG on Steam. Starless Umbra has co-op; ONI-WARDEN does not. No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose ONI-WARDEN
Choose ONI-WARDEN if you want the DualSense Controller Support side of the pairing. On Steam, it's a focused single-player run rather than a multiplayer commitment.
Both Starless Umbra and ONI-WARDEN sit in Action, Indie, and RPG on Steam and both list DualShock Controller Support and Gamepad Recommended, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Starless Umbra |  ONI-WARDEN | |
|---|---|---|
| Released | — | — |
| Genres | Action, Indie, Adventure, RPG | Action, Indie, RPG |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Multi-player, Shared/Split Screen Co-op, Co-op | Single-player only |
| Developers | Alcuria Games | ろじうら倶楽部 |
Side by side
- Both share Action, Indie, RPG on Steam.
- Starless Umbra has co-op; ONI-WARDEN does not.
Starless Umbra vs ONI-WARDEN — FAQ
- Are Starless Umbra and ONI-WARDEN similar?
- They overlap on Action, Indie, RPG on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Does ONI-WARDEN have multiplayer like Starless Umbra?
- No. Starless Umbra supports multiplayer on Steam (Multi-player, Shared/Split Screen Co-op, Co-op), while ONI-WARDEN is listed as single-player only.