Choose 绛河之上 Under Supernova
Choose 绛河之上 Under Supernova if you want an Indie, Simulation, and RPG game with LAN Co-op and Co-op. On Steam, it has co-op, so you can bring a friend. 绛河之上 Under Supernova launched in 2023.
绛河之上 Under Supernova vs Slimeball Castle Wars
绛河之上 Under Supernova and Slimeball Castle Wars both land in Strategy, Early Access 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 Strategy, Early Access on Steam. 绛河之上 Under Supernova (2023) is 3 years older than Slimeball Castle Wars (2026). 绛河之上 Under Supernova has co-op; Slimeball Castle Wars 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 Slimeball Castle Wars
Choose Slimeball Castle Wars if you want a Casual game with Online PvP. On Steam, it's the newer release (2026) and ships with the modern feature baseline. Slimeball Castle Wars launched in 2026.
Both 绛河之上 Under Supernova and Slimeball Castle Wars sit in Strategy and Early Access on Steam and both list Multi-player, LAN 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
 绛河之上 Under Supernova |  Slimeball Castle Wars | |
|---|---|---|
| Released | 2023 | 2026 |
| Genres | Strategy, Indie, Simulation, RPG, Early Access | Strategy, Casual, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 7.99 USD | Price unknown |
| Steam reviews | — | — |
| Multiplayer | Multi-player, LAN Co-op, Co-op | Multi-player |
| Developers | UnderSupernovaGroup | Renno East |
Side by side
- Both share Strategy, Early Access on Steam.
- 绛河之上 Under Supernova (2023) is 3 years older than Slimeball Castle Wars (2026).
- 绛河之上 Under Supernova has co-op; Slimeball Castle Wars does not.
绛河之上 Under Supernova vs Slimeball Castle Wars — FAQ
- Should I play 绛河之上 Under Supernova or Slimeball Castle Wars first?
- If you want chronology, 绛河之上 Under Supernova (2023) came out before Slimeball Castle Wars (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 绛河之上 Under Supernova and Slimeball Castle Wars similar?
- They overlap on Strategy, Early Access 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.