Choose Nienix: Cosmic Warfare
Choose Nienix: Cosmic Warfare if you want an Indie and RPG game with Multi-player. 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 Operation: Black Genesis - The Immortal Trials
Nienix: Cosmic Warfare and Operation: Black Genesis - The Immortal Trials both land in Action, 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, Adventure on Steam. Nienix: Cosmic Warfare (2023) is 3 years older than Operation: Black Genesis - The Immortal Trials (2026). Both support cooperative play. 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 Operation: Black Genesis - The Immortal Trials
Choose Operation: Black Genesis - The Immortal Trials if you want an Early Access game with Custom Volume Controls and Save Anytime. On Steam, it's the newer release (2026) and ships with the modern feature baseline. Operation: Black Genesis - The Immortal Trials launched in 2026.
Both Nienix: Cosmic Warfare and Operation: Black Genesis - The Immortal Trials sit in Action and Adventure on Steam and both list Online PvP, Online Co-op, and LAN 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 |  Operation: Black Genesis - The Immortal Trials | |
|---|---|---|
| Released | 2023 | 2026 |
| Genres | Action, Indie, Adventure, RPG | Action, Adventure, Early Access |
| 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 | Online Co-op, LAN Co-op, Co-op |
| Developers | HolmCom | IL Labs |
Side by side
- Both share Action, Adventure on Steam.
- Nienix: Cosmic Warfare (2023) is 3 years older than Operation: Black Genesis - The Immortal Trials (2026).
- Both support cooperative play.
- Nienix: Cosmic Warfare is Deck Verified on Steam Deck; Operation: Black Genesis - The Immortal Trials has no Deck rating yet.
Nienix: Cosmic Warfare vs Operation: Black Genesis - The Immortal Trials — FAQ
- Should I play Nienix: Cosmic Warfare or Operation: Black Genesis - The Immortal Trials first?
- If you want chronology, Nienix: Cosmic Warfare (2023) came out before Operation: Black Genesis - The Immortal Trials (2026). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are Nienix: Cosmic Warfare and Operation: Black Genesis - The Immortal Trials similar?
- They overlap on Action, 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.
- Do both Nienix: Cosmic Warfare and Operation: Black Genesis - The Immortal Trials have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Nienix: Cosmic Warfare ships Online Co-op, LAN Co-op; Operation: Black Genesis - The Immortal Trials ships Online Co-op, LAN Co-op.
- Does Nienix: Cosmic Warfare run on Steam Deck?
- Yes — Nienix: Cosmic Warfare is rated Deck Verified by Valve. Operation: Black Genesis - The Immortal Trials doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.