Choose 召唤之王 (Supreme Summoner)
Choose 召唤之王 (Supreme Summoner) if you want an Indie, RPG, and Casual game with Online Co-op and Co-op. On Steam, it has co-op, so you can bring a friend. 召唤之王 (Supreme Summoner) launched in 2023.
召唤之王 (Supreme Summoner) vs Nightmares
召唤之王 (Supreme Summoner) and Nightmares both land in Strategy, Free To Play 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, Free To Play on Steam. 召唤之王 (Supreme Summoner) (2023) is 3 years older than Nightmares (2026). Both are free to 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 Nightmares
Choose Nightmares if you want an Early Access experience. On Steam, it's the newer release (2026) and ships with the modern feature baseline. Nightmares launched in 2026.
Both 召唤之王 (Supreme Summoner) and Nightmares sit in Strategy and Free To Play 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
 召唤之王 (Supreme Summoner) |  Nightmares | |
|---|---|---|
| Released | 2023 | 2026 |
| Genres | Strategy, Indie, RPG, Free To Play, Casual | Strategy, Free To Play, Early Access |
| Platforms | Windows | Windows, macOS |
| Steam Deck | Deck Playable | Unrated |
| Price | Free to play | Free to play |
| Steam reviews | 5 reviews | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Cross-Platform Multiplayer |
| Developers | CoolStar Games | https://steamcommunity.com/groups/NightmaresCardGaming |
Side by side
- Both share Strategy, Free To Play on Steam.
- 召唤之王 (Supreme Summoner) (2023) is 3 years older than Nightmares (2026).
- Both are free to play.
- 召唤之王 (Supreme Summoner) has co-op; Nightmares does not.
- 召唤之王 (Supreme Summoner) is Deck Playable on Steam Deck; Nightmares has no Deck rating yet.
召唤之王 (Supreme Summoner) vs Nightmares — FAQ
- Should I play 召唤之王 (Supreme Summoner) or Nightmares first?
- If you want chronology, 召唤之王 (Supreme Summoner) (2023) came out before Nightmares (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 召唤之王 (Supreme Summoner) and Nightmares similar?
- They overlap on Strategy, Free To Play 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 召唤之王 (Supreme Summoner) run on Steam Deck?
- Yes — 召唤之王 (Supreme Summoner) is rated Deck Playable by Valve. Nightmares doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.