Is Fish Idle 2: Underwater Mystery free?

Yes — Fish Idle 2: Underwater Mystery is free to play, so you can install and play it without buying anything.

Is Fish Idle 2: Underwater Mystery Steam Deck compatible?

Mostly. Valve rates Fish Idle 2: Underwater Mystery Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.

Can I play Fish Idle 2: Underwater Mystery on Mac?

Not natively — Steam lists no macOS version of Fish Idle 2: Underwater Mystery. Mac players would need a cloud gaming service or a Windows compatibility layer.

Is Fish Idle 2: Underwater Mystery multiplayer?

No — Steam lists Fish Idle 2: Underwater Mystery as single-player only.

Is Fish Idle 2: Underwater Mystery on PC Game Pass?

No — Fish Idle 2: Underwater Mystery is not on PC Game Pass right now.

Fish Idle 2: Underwater Mystery

Multicast · November 15, 2024 · Casual, Adventure, Point & Click, Arcade, Top-Down

Fish Idle 2: Underwater Mystery is free to play — no purchase needed. We track it so you know if that ever changes.

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Mixed66% · 1,626298playing now

Best price

Free

Get it free on Steam

This game is free to play. Get it on Steam →

Screenshots

Fish Idle 2: Underwater Mystery price

Fish Idle 2: Underwater Mystery is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Fish Idle 2: Underwater Mystery

✦ AI summary

Automate your fishing empire by steering your boat to catch fish schools, then upgrade your rods, storage, and hire AI bots to maximize your profits in this idle fishing tycoon. Blend active boat piloting with passive income streams like fish farms and currency exchanges to become the ultimate underwater tycoon.

Crush in your rainboots and hop into your boat! We are going fishing in Fish Idle 2: Underwater Mystery, a unique idle fishing arcade featuring smooth graphics and intuitive mechanics. We have no time to swing a fishing rod, so let’s streamline the process!

SIMPLE AND EASY FISHING

https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3037410/extras/GIF-5.gif
Let’s start with the basics. It’s all about automation: fish start biting as soon as you approach them, and resource indicators keep you informed while you focus on managing your Fish Kingdom effectively. The game offers advantageous upgrades to enhance your idle fishing abilities, helping you become a true fish tycoon. You’ll still need to steer your boat to chase fish schools and avoid obstacles, so don’t get too distracted by your economic prowess!

UPGRADE YOUR FISH KINGDOM

https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3037410/extras/quests_and_craft.gif
Once your hull is full, it’s time to get upgraded! Improvements in fishing speed let you catch more and rarer species, while increased storage capacity allows you to hold more catches in your boat. Boost your boat’s speed and defense for impact protection, and enhance your fishing rods to cast multiple lines at once. It’s all about maximizing your gains in the most efficient way, so you’ll have to use your head to figure out the best way to success!

MAKE IT BIG

https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3037410/extras/GIF-1.gif
Just like in real life, becoming a fish tycoon involves various ways to profit from your catches. The Idle Fish Farm allows you to invest and get passive income, while the Black Market lets you upgrade your Fish Kingdoms beyond OSHA standards. The Bots Shop enables you to hire hunter, fisher, and cargo ships to fish and deliver catch for you, boosting your income. If day trading is your thing, there is a Currency Exchange that has some special benefits. Tax fraud is not a crime, it’s an obligation if you want to make it big.

NOW GO FISH

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Get ready to dive into the Fish Kingdoms and become the ultimate fish tycoon in Fish Idle 2: Underwater Mystery!

Fish Idle 2: Underwater Mystery — game info

Platforms: Windows
Steam Deck: Playable
Player modes: Single-player
PC Game Pass: Not included

Fish Idle 2: Underwater Mystery — questions & answers

Is Fish Idle 2: Underwater Mystery free?: Yes — Fish Idle 2: Underwater Mystery is free to play, so you can install and play it without buying anything.
Is Fish Idle 2: Underwater Mystery Steam Deck compatible?: Mostly. Valve rates Fish Idle 2: Underwater Mystery Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.
Can I play Fish Idle 2: Underwater Mystery on Mac?: Not natively — Steam lists no macOS version of Fish Idle 2: Underwater Mystery. Mac players would need a cloud gaming service or a Windows compatibility layer.
Is Fish Idle 2: Underwater Mystery multiplayer?: No — Steam lists Fish Idle 2: Underwater Mystery as single-player only.
Is Fish Idle 2: Underwater Mystery on PC Game Pass?: No — Fish Idle 2: Underwater Mystery is not on PC Game Pass right now.

DLC & expansions

Fish Idle 2: Underwater Mystery - Welcome Pack

No offers

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

Fish Idle 2: Underwater Mystery is a game that starts off decently enough but struggles with its core idle mechanics, as players find the progression painfully slow with long waits between fish spawns that undermine the idle experience. The game is heavily criticized for its aggressive pay-to-win features and extreme grindiness, along with quality-of-life issues like lack of bulk-open buttons and poorly designed delivery systems, making completion feel unreasonably tedious even for dedicated players.

Recommended Oct 2, 2026

Yes

Recommended Sep 29, 2026

Fih

Not recommended Sep 25, 2026

[h1]Feels more like a mobile game than a finished PC game[/h1] The game has potential, but it feels [b]unfinished and abandoned[/b]. The developers barely communicate with the community, and it feels like they simply left the game to die without properly finishing it. [h2]Progression[/h2] The progression is [b]extremely grindy[/b], especially if you don't spend money. I wouldn't call it heavily Pay-to-Win, but spending money makes progression significantly faster, while playing completely free can feel unnecessarily slow. [h2]Not really an idle game[/h2] It also doesn't really feel like an idle game. There is a lot of active management, waiting and grinding, making it feel more like a [b]mobile game with idle mechanics[/b] than a proper PC idle game. The [b]Steam Marketplace and trading system[/b] is an interesting concept. [h2]Misleading trailer[/h2] Another major issue is the [b]Steam trailer[/b]. What is shown in the trailer doesn't properly represent what you actually do in the game. It gives the same impression as those misleading mobile-game advertisements where the gameplay shown in the ad barely resembles the actual game. [h2]Final thoughts[/h2] …

Not recommended Sep 25, 2026

Unfinished game. No way to win, plenty of ways to send the developers your cash.

Recommended Sep 20, 2026

That mobile game

Not recommended Sep 18, 2026

game sux if u value ur time stay away

Community reviews

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