Choose A Building Full of Cats 2
Choose A Building Full of Cats 2 if you want an Adventure experience. On Steam, it's Steam Deck Verified, so handheld play works out of the box. A Building Full of Cats 2 launched in 2025.
A Building Full of Cats 2 vs Flats Full of Cats
A Building Full of Cats 2 and Flats Full of Cats 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. A Building Full of Cats 2 (2025) is 1 year older than Flats Full of Cats (2026). Flats Full of Cats is free; A Building Full of Cats 2 is paid (6.99 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 Flats Full of Cats
Choose Flats Full of Cats if you want a Free To Play experience. On Steam, it's free to play, so the barrier to trying it is zero. Flats Full of Cats launched in 2026.
Both A Building Full of Cats 2 and Flats Full of Cats 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
 A Building Full of Cats 2 |  Flats Full of Cats | |
|---|---|---|
| Released | 2025 | 2026 |
| Genres | Indie, Adventure, Casual | Indie, Free To Play, Casual |
| Platforms | Windows, Linux | Windows, Linux |
| Steam Deck | Deck Verified | Unrated |
| Price | 6.99 USD | Free to play |
| Steam reviews | 98% positive (594 reviews) | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Devcats | Devcats |
Side by side
- Both share Indie, Casual on Steam.
- A Building Full of Cats 2 (2025) is 1 year older than Flats Full of Cats (2026).
- Flats Full of Cats is free; A Building Full of Cats 2 is paid (6.99 USD).
- A Building Full of Cats 2 is Deck Verified on Steam Deck; Flats Full of Cats has no Deck rating yet.
A Building Full of Cats 2 vs Flats Full of Cats — FAQ
- Should I play A Building Full of Cats 2 or Flats Full of Cats first?
- If you want chronology, A Building Full of Cats 2 (2025) came out before Flats Full of Cats (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 A Building Full of Cats 2 and Flats Full of Cats 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.
- Is Flats Full of Cats free?
- Yes — Flats Full of Cats is a free-to-play Steam title. A Building Full of Cats 2 is paid (6.99 USD).
- Does A Building Full of Cats 2 run on Steam Deck?
- Yes — A Building Full of Cats 2 is rated Deck Verified by Valve. Flats Full of Cats doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.