Choose KeyWe
Choose KeyWe if you want the Multi-player, Shared/Split Screen, and Online Co-op side of the pairing. On Steam, it has co-op, so you can bring a friend. KeyWe launched in 2021.
KeyWe vs Mostly Cat
KeyWe and Mostly Cat both land in Indie, 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 Indie, Casual on Steam. KeyWe has co-op; Mostly Cat does not. KeyWe is Deck Playable on Steam Deck; Mostly Cat 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 Mostly Cat
Choose Mostly Cat if you want an Adventure experience. On Steam, it's a focused single-player run rather than a multiplayer commitment.
Both KeyWe and Mostly Cat sit in Indie and Casual on Steam, 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
 KeyWe |  Mostly Cat | |
|---|---|---|
| Released | 2021 | — |
| Genres | Indie, Casual | Indie, Adventure, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 24.99 USD | Price unknown |
| Steam reviews | 91.7% positive (981 reviews) | — |
| Multiplayer | Multi-player, Online Co-op, Shared/Split Screen Co-op | Single-player only |
| Developers | Stonewheat & Sons | Gridzilla |
Side by side
- Both share Indie, Casual on Steam.
- KeyWe has co-op; Mostly Cat does not.
- KeyWe is Deck Playable on Steam Deck; Mostly Cat has no Deck rating yet.
KeyWe vs Mostly Cat — FAQ
- Are KeyWe and Mostly Cat similar?
- They overlap on Indie, 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 Mostly Cat have multiplayer like KeyWe?
- No. KeyWe supports multiplayer on Steam (Multi-player, Online Co-op, Shared/Split Screen Co-op), while Mostly Cat is listed as single-player only.
- Does KeyWe run on Steam Deck?
- Yes — KeyWe is rated Deck Playable by Valve. Mostly Cat doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.