Choose SoulSide
Choose SoulSide if you want the Stereo Sound side of the pairing. On Steam, it's a focused single-player run rather than a multiplayer commitment.
SoulSide vs Starless Umbra
SoulSide and Starless Umbra both land in Action, Indie, Adventure 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, Adventure on Steam. Starless Umbra has co-op; SoulSide 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 Starless Umbra
Choose Starless Umbra if you want the Multi-player, Shared/Split Screen, and Shared/Split Screen Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend.
Both SoulSide and Starless Umbra sit in Action, Indie, and Adventure on Steam and both list DualShock Controller Support, Custom Volume Controls, and Keyboard Only Option, 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
 SoulSide |  Starless Umbra | |
|---|---|---|
| Released | — | — |
| Genres | Action, Indie, Adventure, RPG | Action, Indie, Adventure, RPG |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Single-player only | Multi-player, Shared/Split Screen Co-op, Co-op |
| Developers | Mikado | Alcuria Games |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Starless Umbra has co-op; SoulSide does not.
SoulSide vs Starless Umbra — FAQ
- Are SoulSide and Starless Umbra similar?
- They overlap on Action, Indie, Adventure 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 SoulSide have multiplayer like Starless Umbra?
- No. Starless Umbra supports multiplayer on Steam (Multi-player, Shared/Split Screen Co-op, Co-op), while SoulSide is listed as single-player only.