Choose Slay the Spire 2
Choose Slay the Spire 2 if you want an Early Access game with Multi-player, Steam Leaderboards, and Online Co-op. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 54,616 Steam reviews back the pick.
Slay the Spire 2 vs Once Upon A Card
Slay the Spire 2 and Once Upon A Card both land in Strategy, 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 Strategy, Indie on Steam. Both released in 2026. Once Upon A Card is free; Slay the Spire 2 is paid (24.99 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 Once Upon A Card
Choose Once Upon A Card if you want a Free To Play game with Stereo Sound. On Steam, it's free to play, so the barrier to trying it is zero. Once Upon A Card launched in 2026.
Both Slay the Spire 2 and Once Upon A Card sit in Strategy and Indie on Steam and both list Custom Volume Controls, Playable without Timed Input, and Mouse Only Option, 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
 Slay the Spire 2 |  Once Upon A Card | |
|---|---|---|
| Released | 2026 | 2026 |
| Genres | Strategy, Indie, Early Access | Strategy, Indie, Free To Play |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 24.99 USD | Free to play |
| Steam reviews | 93.5% positive (54,616 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Single-player only |
| Developers | Mega Crit | ISART DIGITAL |
Side by side
- Both share Strategy, Indie on Steam.
- Both released in 2026.
- Once Upon A Card is free; Slay the Spire 2 is paid (24.99 USD).
- Slay the Spire 2 has co-op; Once Upon A Card does not.
- Slay the Spire 2 is Deck Verified on Steam Deck; Once Upon A Card has no Deck rating yet.
Slay the Spire 2 vs Once Upon A Card — FAQ
- Are Slay the Spire 2 and Once Upon A Card similar?
- They overlap on Strategy, 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.
- Does Once Upon A Card have multiplayer like Slay the Spire 2?
- No. Slay the Spire 2 supports multiplayer on Steam (Multi-player, Online Co-op, Co-op), while Once Upon A Card is listed as single-player only.
- Is Once Upon A Card free?
- Yes — Once Upon A Card is a free-to-play Steam title. Slay the Spire 2 is paid (24.99 USD).
- Does Slay the Spire 2 run on Steam Deck?
- Yes — Slay the Spire 2 is rated Deck Verified by Valve. Once Upon A Card doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.