Choose Nienix: Cosmic Warfare
Choose Nienix: Cosmic Warfare if you want a RPG game with Online Co-op, LAN PvP, and LAN Co-op. On Steam, it's Steam Deck Verified, so handheld play works out of the box. Nienix: Cosmic Warfare launched in 2023.
Nienix: Cosmic Warfare vs Project S.U.N.D.I.A.L
Nienix: Cosmic Warfare and Project S.U.N.D.I.A.L 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. Nienix: Cosmic Warfare has co-op; Project S.U.N.D.I.A.L does not. Nienix: Cosmic Warfare is Deck Verified on Steam Deck; Project S.U.N.D.I.A.L has no Deck rating yet. 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 Project S.U.N.D.I.A.L
Choose Project S.U.N.D.I.A.L if you want the Steam Leaderboards, DualShock Controller Support, and Steam Input API Support side of the pairing.
Both Nienix: Cosmic Warfare and Project S.U.N.D.I.A.L sit in Action, Indie, and Adventure on Steam and both list Multi-player, Online PvP, and PvP, 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
 Nienix: Cosmic Warfare |  Project S.U.N.D.I.A.L | |
|---|---|---|
| Released | 2023 | — |
| Genres | Action, Indie, Adventure, RPG | Action, Indie, Adventure |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 19.99 USD | Price unknown |
| Steam reviews | 88% positive (191 reviews) | — |
| Multiplayer | Multi-player, Cross-Platform Multiplayer, Online Co-op | Multi-player, Cross-Platform Multiplayer |
| Developers | HolmCom | Ice Quake Games |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Nienix: Cosmic Warfare has co-op; Project S.U.N.D.I.A.L does not.
- Nienix: Cosmic Warfare is Deck Verified on Steam Deck; Project S.U.N.D.I.A.L has no Deck rating yet.
Nienix: Cosmic Warfare vs Project S.U.N.D.I.A.L — FAQ
- Are Nienix: Cosmic Warfare and Project S.U.N.D.I.A.L 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 Nienix: Cosmic Warfare run on Steam Deck?
- Yes — Nienix: Cosmic Warfare is rated Deck Verified by Valve. Project S.U.N.D.I.A.L doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.