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. Runi's Math Castle launched in 2024.
Runi's Math Castle vs Cloud Popper (Toddler/Early Years Game)
Runi's Math Castle and Cloud Popper (Toddler/Early Years Game) 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. Runi's Math Castle (2024) is 1 year older than Cloud Popper (Toddler/Early Years Game) (2025). Cloud Popper (Toddler/Early Years Game) is currently ~80% cheaper on Steam than Runi's Math Castle (0.99 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 Cloud Popper (Toddler/Early Years Game)
Choose Cloud Popper (Toddler/Early Years Game) if you want an Early Access experience. On Steam, it's currently about 80% cheaper on the Steam Store. Cloud Popper (Toddler/Early Years Game) launched in 2025.
Both Runi's Math Castle and Cloud Popper (Toddler/Early Years Game) 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
 Runi's Math Castle |  Cloud Popper (Toddler/Early Years Game) | |
|---|---|---|
| Released | 2024 | 2025 |
| Genres | Indie, Casual | Indie, Casual, Early Access |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 4.99 USD | 0.99 USD |
| Steam reviews | 1 reviews | 2 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Nicole Haynie, Wesley Barros, sillylittlemuse | Maya |
Side by side
- Both share Indie, Casual on Steam.
- Runi's Math Castle (2024) is 1 year older than Cloud Popper (Toddler/Early Years Game) (2025).
- Cloud Popper (Toddler/Early Years Game) is currently ~80% cheaper on Steam than Runi's Math Castle (0.99 USD vs. 4.99 USD).
Runi's Math Castle vs Cloud Popper (Toddler/Early Years Game) — FAQ
- Should I play Runi's Math Castle or Cloud Popper (Toddler/Early Years Game) first?
- If you want chronology, Runi's Math Castle (2024) came out before Cloud Popper (Toddler/Early Years Game) (2025). 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 Runi's Math Castle and Cloud Popper (Toddler/Early Years Game) 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.