STEAMDB NEXUS

Steam app 3037410 · updated 28 Oct 2026, 08:54 UTC

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!

Fish Idle 2: Underwater Mystery Steam header artwork
MulticastMulticastGames
733playing now
73924-hour peak
44,128all-time peak
601average, last 30 days

The last 30 days

−114.4Gain−15.97%% gain776Peak

720 hourly samples, with the daily peak drawn over them. Weekends are shaded.

021041962983828 Sep03 Oct08 Oct13 Oct18 Oct23 Oct28 OctMonday 28 September 2026752 peakTuesday 29 September 2026655 peakWednesday 30 September 2026670 peakThursday 01 October 2026728 peakFriday 02 October 2026731 peakSaturday 03 October 2026748 peakSunday 04 October 2026768 peakMonday 05 October 2026724 peakTuesday 06 October 2026708 peakWednesday 07 October 2026724 peakThursday 08 October 2026461 peakFriday 09 October 2026763 peakSaturday 10 October 2026763 peakSunday 11 October 2026774 peakMonday 12 October 2026747 peakTuesday 13 October 2026773 peakWednesday 14 October 2026776 peakThursday 15 October 2026739 peakFriday 16 October 2026731 peakSaturday 17 October 2026738 peakSunday 18 October 2026749 peakMonday 19 October 2026769 peakTuesday 20 October 2026762 peakWednesday 21 October 2026730 peakThursday 22 October 2026766 peakFriday 23 October 2026702 peakSaturday 24 October 2026740 peakSunday 25 October 2026754 peakMonday 26 October 2026715 peakTuesday 27 October 2026732 peakWednesday 28 October 2026739 peak
Daily peakEvery hourly sample

All time

24 months, November 2024 to October 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.

012k24k36k48kNov 2024Mar 2025Jul 2025Nov 2025Mar 2026Jul 2026November 20241,247 monthly peakDecember 20241,010 monthly peakJanuary 2025910 monthly peakFebruary 20251,520 monthly peakMarch 20253,099 monthly peakApril 20253,911 monthly peakMay 20253,338 monthly peakJune 20254,549 monthly peakJuly 20257,125 monthly peakAugust 20257,036 monthly peakSeptember 202519,305 monthly peakOctober 202519,843 monthly peakNovember 202544,128 monthly peakDecember 202523,445 monthly peakJanuary 202611,449 monthly peakFebruary 202610,215 monthly peakMarch 20269,576 monthly peakApril 20269,035 monthly peakMay 20265,427 monthly peakJune 20264,758 monthly peakJuly 20264,432 monthly peakAugust 20261,063 monthly peakSeptember 2026865 monthly peakOctober 2026776 monthly peak
Monthly peak

The last four months

Show:

The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.

01k2k4k5kJuly 2026August 2026September 2026October 2026July 20264,432 peak — no finer data keptAugust 20261,063 peak — daily detail belowSeptember 2026865 peak — daily detail belowOctober 2026776 peak — hourly detail below
Monthly peakHas finer data

July 2026

The source keeps every hour for about a month, one figure a day for about two, and a single number for anything older.

One measurement for the whole month: 4,432 at peak.There is nothing finer than that to draw.

August 2026

31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

02875748611k01 Aug06 Aug11 Aug16 Aug21 Aug26 Aug31 AugSaturday 01 August 2026779 peakSunday 02 August 2026801 peakMonday 03 August 2026820 peakTuesday 04 August 2026792 peakWednesday 05 August 2026789 peakThursday 06 August 2026830 peakFriday 07 August 2026771 peakSaturday 08 August 2026628 peakSunday 09 August 2026704 peakMonday 10 August 2026705 peakTuesday 11 August 2026722 peakWednesday 12 August 2026844 peakThursday 13 August 2026969 peakFriday 14 August 2026920 peakSaturday 15 August 2026918 peakSunday 16 August 20261,057 peakMonday 17 August 20261,021 peakTuesday 18 August 20261,039 peakWednesday 19 August 2026982 peakThursday 20 August 2026933 peakFriday 21 August 2026997 peakSaturday 22 August 20261,029 peakSunday 23 August 20261,063 peakMonday 24 August 20261,003 peakTuesday 25 August 2026952 peakWednesday 26 August 2026972 peakThursday 27 August 2026963 peakFriday 28 August 2026873 peakSaturday 29 August 2026796 peakSunday 30 August 2026865 peakMonday 31 August 2026803 peak

September 2026

30 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

023446770193401 Sep06 Sep11 Sep16 Sep21 Sep26 SepTuesday 01 September 2026819 peakWednesday 02 September 2026797 peakThursday 03 September 2026773 peakFriday 04 September 2026842 peakSaturday 05 September 2026821 peakSunday 06 September 2026836 peakMonday 07 September 2026789 peakTuesday 08 September 2026799 peakWednesday 09 September 2026770 peakThursday 10 September 2026799 peakFriday 11 September 2026838 peakSaturday 12 September 2026850 peakSunday 13 September 2026852 peakMonday 14 September 2026810 peakTuesday 15 September 2026819 peakWednesday 16 September 2026799 peakThursday 17 September 2026818 peakFriday 18 September 2026843 peakSaturday 19 September 2026843 peakSunday 20 September 2026865 peakMonday 21 September 2026783 peakTuesday 22 September 2026805 peakWednesday 23 September 2026784 peakThursday 24 September 2026759 peakFriday 25 September 2026757 peakSaturday 26 September 2026772 peakSunday 27 September 2026781 peakMonday 28 September 2026752 peakTuesday 29 September 2026655 peakWednesday 30 September 2026670 peak

October 2026

28 days as the curve, each the highest figure that day. Behind it, 657 hourly samples. Each dip is a night. Weekends are shaded.

021041962983801 Oct05 Oct09 Oct13 Oct17 Oct21 Oct25 OctThursday 01 October 2026728 peakFriday 02 October 2026731 peakSaturday 03 October 2026748 peakSunday 04 October 2026768 peakMonday 05 October 2026724 peakTuesday 06 October 2026708 peakWednesday 07 October 2026724 peakThursday 08 October 2026461 peakFriday 09 October 2026763 peakSaturday 10 October 2026763 peakSunday 11 October 2026774 peakMonday 12 October 2026747 peakTuesday 13 October 2026773 peakWednesday 14 October 2026776 peakThursday 15 October 2026739 peakFriday 16 October 2026731 peakSaturday 17 October 2026738 peakSunday 18 October 2026749 peakMonday 19 October 2026769 peakTuesday 20 October 2026762 peakWednesday 21 October 2026730 peakThursday 22 October 2026766 peakFriday 23 October 2026702 peakSaturday 24 October 2026740 peakSunday 25 October 2026754 peakMonday 26 October 2026715 peakTuesday 27 October 2026732 peakWednesday 28 October 2026739 peak
Nothing here is interpolated or estimated; where a sample is missing the line is broken.

Game information

Free to playUpdated 28 Oct 2026, 08:54 UTC
App ID
3037410
Last updated
15 Sep 2025 build 17691957
Update pace
Quiet no update while we have been watching · 0 in 47 days watched
Developer
Multicast
Publisher
MulticastGames
Release date
Nov 15, 2024
Platforms
Windows
Download size
67 MB
Install size
160 MB
Genres
Adventure, Casual, Indie, Free To Play
Game modes
Single-player
Controller support
Unknown
Achievements
30

Features & support

Steam features

Family Sharing

Controllers & input

Accessibility

Popular tags

CasualAdventurePoint & ClickArcadeTop-Down3DCuteFishingAtmosphericRelaxingNavalLinearScore AttackOpen WorldTradingSingleplayerFree to PlayIdlerResource ManagementIndie
About this gameFull description from Steam
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 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 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 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 Get ready to dive into the Fish Kingdoms and become the ultimate fish tycoon in Fish Idle 2: Underwater Mystery!
Content & age ratings2 regional ratings

Regional ratings

DEJUSl
IGRS3
System requirementsMinimum and recommended hardware

Minimum

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

Recommended

Recommended: OS: windows 10 Processor: Core I3 Graphics: no Sound Card: - VR Support: no
Supported languages6 languages
LanguageFull audio
English
Spanish - Spain
German
Korean
Russian
Japanese

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

AchievementsTotal count and selected achievements

30 achievements in total.

Show selected achievements (may contain spoilers)
First Catch!Achievement
Casting BeginnerAchievement
Smooth SailorAchievement
Seasoned AnglerAchievement
Master FishermanAchievement
Ocean Explorer Achievement
Legend of the SeasAchievement
Sailor’s StartHidden achievement
Calm Waters Hidden achievement
Storm Chaser Hidden achievement

View all Steam achievements

DemosPlayable demos on Steam

1 developer announcement in this snapshot · times in UTC

November

  1. New patch is live!

    Hello, fishermans! Glad to announce new patch with bug fixes and game improvements Window screen mode and sound settings Now you can switch the game to window mode in game settings! Be sure to stretch window after switching to state you…

    Patch notes

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