Choose Fish Idle 2: Underwater Mystery
Choose Fish Idle 2: Underwater Mystery if you want an Indie and Free To Play experience. On Steam, it's free to play, so the barrier to trying it is zero. Fish Idle 2: Underwater Mystery launched in 2024.
Fish Idle 2: Underwater Mystery vs Sea Town - Fish Market Simulator
Fish Idle 2: Underwater Mystery and Sea Town - Fish Market Simulator both land in 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 Adventure, Casual on Steam. Fish Idle 2: Underwater Mystery (2024) is 1 year older than Sea Town - Fish Market Simulator (2025). Fish Idle 2: Underwater Mystery scores higher on Steam reviews (59% positive) than Sea Town - Fish Market Simulator (47.6% 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 Sea Town - Fish Market Simulator
Choose Sea Town - Fish Market Simulator if you want a Simulation experience. Sea Town - Fish Market Simulator launched in 2025.
Both Fish Idle 2: Underwater Mystery and Sea Town - Fish Market Simulator sit in 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
 Fish Idle 2: Underwater Mystery |  Sea Town - Fish Market Simulator | |
|---|---|---|
| Released | 2024 | 2025 |
| Genres | Indie, Adventure, Free To Play, Casual | Adventure, Simulation, Casual |
| Platforms | Windows | Windows |
| Steam Deck | Deck Playable | Unrated |
| Price | Free to play | 3.99 USD |
| Steam reviews | 59% positive (534 reviews) | 47.6% positive (21 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Multicast | Alice Games |
Side by side
- Both share Adventure, Casual on Steam.
- Fish Idle 2: Underwater Mystery (2024) is 1 year older than Sea Town - Fish Market Simulator (2025).
- Fish Idle 2: Underwater Mystery scores higher on Steam reviews (59% positive) than Sea Town - Fish Market Simulator (47.6% positive).
- Fish Idle 2: Underwater Mystery is free; Sea Town - Fish Market Simulator is paid (3.99 USD).
- Fish Idle 2: Underwater Mystery is Deck Playable on Steam Deck; Sea Town - Fish Market Simulator has no Deck rating yet.
Fish Idle 2: Underwater Mystery vs Sea Town - Fish Market Simulator — FAQ
- Should I play Fish Idle 2: Underwater Mystery or Sea Town - Fish Market Simulator first?
- If you want chronology, Fish Idle 2: Underwater Mystery (2024) came out before Sea Town - Fish Market Simulator (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 Fish Idle 2: Underwater Mystery and Sea Town - Fish Market Simulator similar?
- They overlap on 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 Fish Idle 2: Underwater Mystery free?
- Yes — Fish Idle 2: Underwater Mystery is a free-to-play Steam title. Sea Town - Fish Market Simulator is paid (3.99 USD).
- Does Fish Idle 2: Underwater Mystery run on Steam Deck?
- Yes — Fish Idle 2: Underwater Mystery is rated Deck Playable by Valve. Sea Town - Fish Market Simulator doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.