Choose Plasma Spheres
Choose Plasma Spheres if you want the Online Co-op, Shared/Split Screen Co-op, and LAN PvP side of the pairing. On Steam, it's currently about 40% cheaper on the Steam Store. Plasma Spheres launched in 2021.
Plasma Spheres vs Kosmo Skirmish
Plasma Spheres and Kosmo Skirmish both land in Action, Indie 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 on Steam. Plasma Spheres (2021) is 3 years older than Kosmo Skirmish (2024). Plasma Spheres is currently ~40% cheaper on Steam than Kosmo Skirmish (2.99 USD vs. 4.99 USD). 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 Kosmo Skirmish
Choose Kosmo Skirmish if it's the newer release (2024) and ships with the modern feature baseline. Kosmo Skirmish launched in 2024.
Both Plasma Spheres and Kosmo Skirmish sit in Action and Indie on Steam and both list Multi-player, Shared/Split Screen, and Online 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
 Plasma Spheres |  Kosmo Skirmish | |
|---|---|---|
| Released | 2021 | 2024 |
| Genres | Action, Indie | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 2.99 USD | 4.99 USD |
| Steam reviews | 1 reviews | 3 reviews |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Multi-player |
| Developers | Abnormal Software | Jérémy Entressangle |
Side by side
- Both share Action, Indie on Steam.
- Plasma Spheres (2021) is 3 years older than Kosmo Skirmish (2024).
- Plasma Spheres is currently ~40% cheaper on Steam than Kosmo Skirmish (2.99 USD vs. 4.99 USD).
- Plasma Spheres has co-op; Kosmo Skirmish does not.
Plasma Spheres vs Kosmo Skirmish — FAQ
- Should I play Plasma Spheres or Kosmo Skirmish first?
- If you want chronology, Plasma Spheres (2021) came out before Kosmo Skirmish (2024). 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 Plasma Spheres and Kosmo Skirmish similar?
- They overlap on Action, Indie 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.