Choose Project S.U.N.D.I.A.L
Choose Project S.U.N.D.I.A.L if you want the Multi-player, Steam Leaderboards, and Online PvP side of the pairing.
Project S.U.N.D.I.A.L vs BOSSLEFT
Project S.U.N.D.I.A.L and BOSSLEFT 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. 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 BOSSLEFT
Choose BOSSLEFT if you want a Casual game with Subtitle Options, Playable without Timed Input, and Save Anytime. On Steam, it's a focused single-player run rather than a multiplayer commitment.
Both Project S.U.N.D.I.A.L and BOSSLEFT sit in Action, Indie, and Adventure on Steam and both list DualShock Controller Support, Steam Input API Support, and Stereo Sound, 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
 Project S.U.N.D.I.A.L |  BOSSLEFT | |
|---|---|---|
| Released | — | — |
| Genres | Action, Indie, Adventure | Action, Indie, Adventure, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | Price unknown | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Multi-player, Cross-Platform Multiplayer | Single-player only |
| Developers | Ice Quake Games | Maroze Studio |
Side by side
- Both share Action, Indie, Adventure on Steam.
Project S.U.N.D.I.A.L vs BOSSLEFT — FAQ
- Are Project S.U.N.D.I.A.L and BOSSLEFT 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 BOSSLEFT have multiplayer like Project S.U.N.D.I.A.L?
- No. Project S.U.N.D.I.A.L supports multiplayer on Steam (Multi-player, Cross-Platform Multiplayer), while BOSSLEFT is listed as single-player only.