Rank 01Why this
Shares fishing and idle automation with Fish Idle 2: Underwater Mystery.
- $3.99 (Price checked Oct 3)
- Deck Playable
- 2025
Games like Fish Idle 2: Underwater Mystery
- 8 games
- Updated May 4, 2026
Players who liked Fish Idle 2: Underwater Mystery also play
The closest matches to Fish Idle 2: Underwater Mystery: Fischer's Fishing Journey, Idle Fishing, Fish to Dish: Idle Sushi, PegIdle, and Fishing Inc. Ranked by imho.run from Steam co-play data, shared tags and reviews.
- Rank 01
Rank 02Why this
Shares idle automation and idle progression with Fish Idle 2: Underwater Mystery.
- Free
- Deck Verified
- 2024
Rank 03- $4.79 (Price checked Oct 3)
- 2025
Rank 04 
PegIdle
Why this: Shares idle automation and auto battle with Fish Idle 2: Underwater Mystery.
Rank 05 
Fishing Inc
Why this: Shares fishing and idle progression with Fish Idle 2: Underwater Mystery.
Rank 06 
Ultimate Fishing Simulator®
Why this: Same chill mood as Fish Idle 2: Underwater Mystery.
Rank 07 
Tiny Aquarium: Social Fishkeeping
Why this: Shares idle progression and resource management with Fish Idle 2: Underwater Mystery.
Rank 08 
Fantasy Aquarium
Why this: Shares grind based progression and idle progression with Fish Idle 2: Underwater Mystery.
The full ranked list: top 24 games like Fish Idle 2: Underwater Mystery
Best match first, as plain text. The same list for AI assistants:
- 1Fischer's Fishing Journey
Shares fishing and idle automation with Fish Idle 2: Underwater Mystery.
- 96% of 178 reviews
- 2Idle Fishing
Shares idle automation and idle progression with Fish Idle 2: Underwater Mystery.
- 78% of 825 reviews
- 3
- 4PegIdle
Shares idle automation and auto battle with Fish Idle 2: Underwater Mystery.
- 73% of 302 reviews
- 5Fishing Inc
Shares fishing and idle progression with Fish Idle 2: Underwater Mystery.
- 94% of 384 reviews
- 6
- 7Tiny Aquarium: Social Fishkeeping
Shares idle progression and resource management with Fish Idle 2: Underwater Mystery.
- 97% of 2,160 reviews
- 8Fantasy Aquarium
Shares grind based progression and idle progression with Fish Idle 2: Underwater Mystery.
- 80% of 93 reviews
- 9
- 10Captain Whiskers: Incremental Seas
Shares idle progression and upgrade system with Fish Idle 2: Underwater Mystery.
- 79% of 163 reviews
- 11
- 12
- 13
- 14Mango's Fisharium
Shares idle progression and meta progression with Fish Idle 2: Underwater Mystery.
- 83% of 211 reviews
- 15
- 16
- 17
- 18
- 19Joyquarium
Shares auto battle and idle progression with Fish Idle 2: Underwater Mystery.
- 86% of 50 reviews
- 20
- 21
- 22
- 23
- 24
- Released: 2024
- Developer: Multicast
- Price: Free to play
- Steam Deck: Deck Playable
- 59% of 534 reviews
- Genres: Indie, Adventure, Free To Play, Casual
- Platforms: Windows
Players highlight
- Charming underwater visuals and aesthetic
- Collecting different fish species and artifacts
- Continuous progression loop with new ocean regions to unlock
- Chill
- Cozy
- Grim
About Fish Idle 2: Underwater Mystery
The closest matches to Fish Idle 2: Underwater Mystery: Fischer's Fishing Journey, Idle Fishing, Fish to Dish: Idle Sushi, PegIdle, and Fishing Inc. Ranked by imho.run from Steam co-play data, shared tags and reviews.
If Fish Idle 2: Underwater Mystery is your kind of game, the closest matches are Fischer's Fishing Journey, Idle Fishing and Fish to Dish: Idle Sushi — picked from the ranked list below. Reviewers describe it as chill, cozy and grim, and single out its artificial progression caps and auto battle. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
About Fish Idle 2: Underwater Mystery: Dive into the most fun idle fishing arcade game! Manage your Fish Kingdoms with automated fishing, upgrade your boat and gear, invest in passive income, and outsmart the market. Become the ultimate fish tycoon!
Is Fish Idle 2: Underwater Mystery worth buying?
Players are split
A summary of what players say, not a promise you'll like it. Every signal is listed below.
- 59% of 534 Steam reviews are positive.
- We don't track this game's daily reviews yet, so this is the all-time picture.
- Free to play.
- People who recommend it had played a median of 31 h when they wrote their review.
- Critics had played a median of 57 h before turning negative, so complaints are about the long run, not the first hours.
- Steam Deck Playable: works, with some rough edges.
What fans praise · Themes mined from positive reviews
- Charming underwater visuals and aesthetic
- Collecting different fish species and artifacts
- Continuous progression loop with new ocean regions to unlock
- Crafting items for further progress
Top critical reviews
The most up-voted negative English reviews in our sample, quoted as written.
“This is probably illegal. Its a stolen phone game "Alien Invasion: RPG Idle Space" Same map, same game play, some of the same assets, some things that are changed are done poorly. Examples, there is a sign that shows you can trade gems for…”
“Progression is very fun for the first 20 hours. Until you unlock level 7 and realize you have now hit the paywall. If you free to play it will take you years to grind to get past the level so might as well quit now. Give it a try until…”
People who play it also play: Fischer's Fishing Journey, Idle Fishing, Fish to Dish: Idle Sushi
Frequently asked about Fish Idle 2: Underwater Mystery
Can I run it?
Does Fish Idle 2: Underwater Mystery run on Steam Deck?
Fish Idle 2: Underwater Mystery is rated Playable on Steam Deck — it runs, but expect some manual adjustments (control remapping, text size, or graphics settings) for the best experience.
Is Fish Idle 2: Underwater Mystery free to play?
Yes — Fish Idle 2: Underwater Mystery is a free-to-play title on Steam. You can install and play it without buying anything, though some games include optional in-app purchases.
What games are most similar to Fish Idle 2: Underwater Mystery?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Fish Idle 2: Underwater Mystery are Fischer's Fishing Journey, Idle Fishing, Fish to Dish: Idle Sushi.
Who developed Fish Idle 2: Underwater Mystery?
Fish Idle 2: Underwater Mystery was developed by Multicast and published by MulticastGames.