Fish Idle 2: Underwater Mystery on Steam - User reviews, Price & Information

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!

Fish Idle 2: Underwater Mystery is a casual, adventure and point & click game developed by Multicast and published by MulticastGames.
Released on November 15th 2024 is available only on Windows in 6 languages: English, Spanish - Spain, German, Korean, Russian and Japanese.

It has received 955 reviews of which 660 were positive and 295 were negative resulting in a rating of 6.7 out of 10. 😐

The game is free to play on Steam.

The Steam community has classified Fish Idle 2: Underwater Mystery into these genres:

Casual Adventure Point & Click Arcade 3D Top-Down Cute Atmospheric Relaxing Fishing Naval Linear Score Attack Open World Trading Resource Management Singleplayer Free to Play Indie Idler

Media & Screenshots

Get an in-depth look at Fish Idle 2: Underwater Mystery through various videos and screenshots.

Fish Idle 2: Underwater Mystery screenshot

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows

OS: windows 10
Processor: Core I3
Graphics: no
Sound Card: -
VR Support: no

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

March 2025

Whatever my gameplay hrs are on record for Fish Idle 2 you can multiply that times six (6) as I'm playing the game simultaneously on six different PCs. This is one of my favourite games at the moment because it's simple, fun, and relaxing to play. Plus once you progress enough in the game you can start just idling and raiding your chest daily. Collect enough chest and craft some cool items to progress even further in the game and/or make some passive income via selling your in game items on the Steam Marketplace. The game use to cost about $8 US then the devs made it free beginning of March 2025 so you can put your money towards a few in games items to help you progress more or the DLC Welcome Pack they are now offering. I understand there are others out there using farming software to get their in game items but I prefer the grind I'm old school; to each their own. If you're interested in fishing games, idle games, or just like to farm in game items to either collect or trade/sell then I highly recommend this game!

Feb. 2025

Do you like earning money on steam to buy games? Awsome, play this game for a month and you will have earned more than the game is worth on steam! (Atleast if it was on sale when you baught it) Do daily missions --> Get items --> Craft better items --> Level up and unlock more --> Repeat! Then sell items that you don't need or don't want. Easy Don't get the bad reviews, Its a game with steam market items that impact game-play alot. If it wasn't grindy to obtain items, they wouldn't be worth anything on the market. If you put in the grind you can earn money on steam market. If you buy items on the steam market you can skip some grind. That's how someone make money, buy selling to the people that don't wanna grind. 8/10 want more fish

Dec. 2024

I did not expect that I would get stuck, it's time to kill the most. We went in with a friend and had a nice chat while fishing in discordica

Dec. 2024

Game has a ton of grind to it, not that I mind. The people all keep saying how stuff they have is aggressively designed to make you pay, but i haven't bought a single chest yet (albeit i did grab myself a rod to show them like $5 support as i like the game, and speed my crafting up) but unless you choose to look for them. there isn't a single popup encouraging purchases. Its just that it takes a LOT OF TIME to make progress which it should be for an idle game. Onto the idle game point, i understand peoples qualms over their what i'll call "tactics" with having aggressive fish, fish that run away, or timers preventing it being an optimal idle. It takes some skill to find a patch of fish you like to idle in overnight (game window must be open and not minimized which i do dislike with a lot of others, seems scummy) it all ties together to make this feel like a constant kick in the teeth when you wanna progress. for example, i've seen some people talk about the yellow fish. those guys were the devil to deal with until i farmed overnight for some upgrades via caviar (fish eggs resource in the game) but once i'd farmed them, the yellow fish became super easy to the point i have over 320k from farming ANOTHER source of them later that i unlocked that also provided more cash & caviar as well. Needless to say, it feels rewarding as all hell to finally farm the resource you needed when you CAN idle it, but most of the time its 75% IMPOSSIBLE to idle without spending, or wasting a ton of time elsewhere first (as you can tell by my hours i've wasted a lot lol) I'd give this game about a 6/10 because for core concept its not bad (yes i've seen and can tell it looks like a reskin of the alien idle, seems lazily put together there but does keep some small differences) The "idle" of having to leave my computer running this as a focused program is utter bs, any idle game should be able to actively be minimized and still work, cause its an IDLE GAME, don't force us to focus on it (I'm just one of the lucky few with 3 monitors so i can shove it to the side and not care, but for people with 1-2 monitors its a d*** move. The daily tasks and missions are alright, I'm not thrilled with 1-3 hour timers on almost all of them cause its dumb. 30min - 1 hour alone is plenty for idle games, i barely get 30-45 min to see what i wanna do on this game after work at night, quit ruining the bit i can already do.

Nov. 2024

Mobile port done excellently! Smooth controls and gameplay.

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Data sources

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Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates

Steam data	12 April 2025 21:05
SteamSpy data	13 April 2025 14:18
Steam price	12 April 2025 21:05
Steam reviews	12 April 2025 19:51

If you'd like to dive deeper into the details about Fish Idle 2: Underwater Mystery, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

SteamDB - A comprehensive database of everything on Steam about Fish Idle 2: Underwater Mystery
SteamCharts - Analysis of Fish Idle 2: Underwater Mystery concurrent players on Steam
ProtonDB - Crowdsourced reports on Linux and Steam Deck Fish Idle 2: Underwater Mystery compatibility

Free to play

6.7

660

295

Online players

2,756

Developer

Multicast

Publisher

MulticastGames

Release 15 Nov 2024

Platforms