Choose Fireflies
Choose Fireflies if you want an Indie experience. On Steam, it's free to play, so the barrier to trying it is zero. Fireflies launched in 2018.
Fireflies vs Moon Mystery
Fireflies and Moon Mystery both land in Action, Adventure, 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 Action, Adventure, Casual on Steam. Fireflies (2018) is 6 years older than Moon Mystery (2024). Moon Mystery scores higher on Steam reviews (64.2% positive) than Fireflies (50% 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 Moon Mystery
Choose Moon Mystery if it's the newer release (2024) and ships with the modern feature baseline. Moon Mystery launched in 2024.
Both Fireflies and Moon Mystery sit in Action, Adventure, 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
 Fireflies |  Moon Mystery | |
|---|---|---|
| Released | 2018 | 2024 |
| Genres | Action, Indie, Adventure, Casual | Action, Adventure, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Deck Playable |
| Price | Free to play | 19.99 USD |
| Steam reviews | 50% positive (16 reviews) | 64.2% positive (349 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Sourabh P Hamigi | Cosmoscouts |
Side by side
- Both share Action, Adventure, Casual on Steam.
- Fireflies (2018) is 6 years older than Moon Mystery (2024).
- Moon Mystery scores higher on Steam reviews (64.2% positive) than Fireflies (50% positive).
- Fireflies is free; Moon Mystery is paid (19.99 USD).
- Both are Deck Playable.
Fireflies vs Moon Mystery — FAQ
- Should I play Fireflies or Moon Mystery first?
- If you want chronology, Fireflies (2018) came out before Moon Mystery (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 Fireflies and Moon Mystery similar?
- They overlap on Action, Adventure, 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 Fireflies free?
- Yes — Fireflies is a free-to-play Steam title. Moon Mystery is paid (19.99 USD).