Choose Once Upon A KATAMARI
Choose Once Upon A KATAMARI if it's Steam Deck Verified, so handheld play works out of the box. Once Upon A KATAMARI launched in 2025.
Once Upon A KATAMARI vs Tagtopia
Once Upon A KATAMARI and Tagtopia both land in Action, Casual 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, Casual on Steam. Tagtopia has co-op; Once Upon A KATAMARI does not. Once Upon A KATAMARI is Deck Verified on Steam Deck; Tagtopia has no Deck rating yet. 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 Tagtopia
Choose Tagtopia if you want the Online Co-op and Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend.
Both Once Upon A KATAMARI and Tagtopia sit in Action and Casual 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
 Once Upon A KATAMARI |  Tagtopia | |
|---|---|---|
| Released | 2025 | — |
| Genres | Action, Casual | Action, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Deck Verified | Unrated |
| Price | 29.99 USD | Price unknown |
| Steam reviews | 92.7% positive (961 reviews) | — |
| Multiplayer | Multi-player | Multi-player, Online Co-op, Co-op |
| Developers | RENGAME | Isaac Abouaf |
Side by side
- Both share Action, Casual on Steam.
- Tagtopia has co-op; Once Upon A KATAMARI does not.
- Once Upon A KATAMARI is Deck Verified on Steam Deck; Tagtopia has no Deck rating yet.
Once Upon A KATAMARI vs Tagtopia — FAQ
- Are Once Upon A KATAMARI and Tagtopia similar?
- They overlap on Action, Casual 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 KATAMARI run on Steam Deck?
- Yes — Once Upon A KATAMARI is rated Deck Verified by Valve. Tagtopia doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.