Choose Little Mouse's Encyclopedia
Choose Little Mouse's Encyclopedia if it matches what drew you to this matchup. Little Mouse's Encyclopedia launched in 2019.
Little Mouse's Encyclopedia vs Runi's Math Castle
Little Mouse's Encyclopedia and Runi's Math Castle 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. Little Mouse's Encyclopedia (2019) is 5 years older than Runi's Math Castle (2024). Runi's Math Castle is currently ~0% cheaper on Steam than Little Mouse's Encyclopedia (4.99 USD vs. 4.99 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 Runi's Math Castle
Choose Runi's Math Castle if you want the Color Alternatives, Custom Volume Controls, and Keyboard Only Option side of the pairing. On Steam, it's the newer release (2024) and ships with the modern feature baseline. Runi's Math Castle launched in 2024.
Both Little Mouse's Encyclopedia and Runi's Math Castle sit in Indie and Casual on Steam and both list Playable without Timed Input, Mouse Only Option, and Touch 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
 Little Mouse's Encyclopedia |  Runi's Math Castle | |
|---|---|---|
| Released | 2019 | 2024 |
| Genres | Indie, Casual | Indie, Casual |
| Platforms | Windows, macOS | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 4.99 USD | 4.99 USD |
| Steam reviews | 94.7% positive (94 reviews) | 1 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Circus Atos | Nicole Haynie, Wesley Barros, sillylittlemuse |
Side by side
- Both share Indie, Casual on Steam.
- Little Mouse's Encyclopedia (2019) is 5 years older than Runi's Math Castle (2024).
- Runi's Math Castle is currently ~0% cheaper on Steam than Little Mouse's Encyclopedia (4.99 USD vs. 4.99 USD).
Little Mouse's Encyclopedia vs Runi's Math Castle — FAQ
- Should I play Little Mouse's Encyclopedia or Runi's Math Castle first?
- If you want chronology, Little Mouse's Encyclopedia (2019) came out before Runi's Math Castle (2024). 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 Little Mouse's Encyclopedia and Runi's Math Castle 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.