Choose Yorna: Monster Girl's Secret
Choose Yorna: Monster Girl's Secret if you want a Casual experience. Yorna: Monster Girl's Secret launched in 2020.
Yorna: Monster Girl's Secret vs Sylphy and the Sleepless Island
Yorna: Monster Girl's Secret and Sylphy and the Sleepless Island both land in Action, Indie, Adventure 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 Action, Indie, Adventure on Steam. Yorna: Monster Girl's Secret (2020) is 1 year older than Sylphy and the Sleepless Island (2021). Yorna: Monster Girl's Secret scores higher on Steam reviews (100% positive) than Sylphy and the Sleepless Island (83.3% positive). 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 Sylphy and the Sleepless Island
Choose Sylphy and the Sleepless Island if you want a Simulation experience. Sylphy and the Sleepless Island launched in 2021.
Both Yorna: Monster Girl's Secret and Sylphy and the Sleepless Island sit in Action, Indie, and Adventure 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
 Yorna: Monster Girl's Secret |  Sylphy and the Sleepless Island | |
|---|---|---|
| Released | 2020 | 2021 |
| Genres | Action, Indie, Adventure, RPG, Casual | Action, Indie, Adventure, Simulation, RPG |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | 19.99 USD | 19.99 USD |
| Steam reviews | 100% positive (20 reviews) | 83.3% positive (30 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Yeehaw Games | Milky Way |
Side by side
- Both share Action, Indie, Adventure on Steam.
- Yorna: Monster Girl's Secret (2020) is 1 year older than Sylphy and the Sleepless Island (2021).
- Yorna: Monster Girl's Secret scores higher on Steam reviews (100% positive) than Sylphy and the Sleepless Island (83.3% positive).
- Sylphy and the Sleepless Island is currently ~0% cheaper on Steam than Yorna: Monster Girl's Secret (19.99 USD vs. 19.99 USD).
- Yorna: Monster Girl's Secret is Deck Playable on Steam Deck; Sylphy and the Sleepless Island has no Deck rating yet.
Yorna: Monster Girl's Secret vs Sylphy and the Sleepless Island — FAQ
- Should I play Yorna: Monster Girl's Secret or Sylphy and the Sleepless Island first?
- If you want chronology, Yorna: Monster Girl's Secret (2020) came out before Sylphy and the Sleepless Island (2021). 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 Yorna: Monster Girl's Secret and Sylphy and the Sleepless Island similar?
- They overlap on Action, Indie, Adventure 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 Yorna: Monster Girl's Secret run on Steam Deck?
- Yes — Yorna: Monster Girl's Secret is rated Deck Playable by Valve. Sylphy and the Sleepless Island doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.