Choose Ultra Mega Cats
Choose Ultra Mega Cats if you want an Early Access experience. Ultra Mega Cats launched in 2025.
Ultra Mega Cats vs Assembly Run
Ultra Mega Cats and Assembly Run both land in Action 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 are Action games on Steam. Both support cooperative play. Ultra Mega Cats is Deck Playable on Steam Deck; Assembly Run 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 Assembly Run
Choose Assembly Run if you want an Indie game with Online PvP, PvP, and Stereo Sound.
Both Ultra Mega Cats and Assembly Run sit in Action on Steam and both list Multi-player, Online Co-op, and Playable without Timed Input, 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
 Ultra Mega Cats |  Assembly Run | |
|---|---|---|
| Released | 2025 | — |
| Genres | Action, Early Access | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 11.99 USD | Price unknown |
| Steam reviews | 84.4% positive (32 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Fallen Leaf, Unseen Silence, Black Drakkar Games | SpareRocket |
Side by side
- Both are Action games on Steam.
- Both support cooperative play.
- Ultra Mega Cats is Deck Playable on Steam Deck; Assembly Run has no Deck rating yet.
Ultra Mega Cats vs Assembly Run — FAQ
- Are Ultra Mega Cats and Assembly Run similar?
- They overlap on Action 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.
- Do both Ultra Mega Cats and Assembly Run have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Ultra Mega Cats ships Online Co-op, Co-op; Assembly Run ships Online Co-op, Co-op.
- Does Ultra Mega Cats run on Steam Deck?
- Yes — Ultra Mega Cats is rated Deck Playable by Valve. Assembly Run doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.