About the Game
Black Hole Fishing is an incremental game about catching absurd numbers of fish using a black hole. Suck fish straight out of the pond, automate restocking and perform questionable fish science. Upgrade it all. Repeat.
Build the World's Most Ridiculous Fish Pond
Start with a humble pond. Catch exotic fish, stock your waters, and then remove those fancy fish from reality using a hungry singularity. Feed the black hole to make it stronger. Bigger the hole, better the fishing.
Do Extremely Normal Fish Science
Why wait for evolution when you can speedrun it. Inject traits directly into your fish. Paint them. Compare your fish. Choose the winners. Cross-breed them and see what happens. Launch your favorites out of a cannon for profit and bonuses. This is all for fun and definitely not concerning!
Unlock powerful tools like the Large Halibut Collider™, combine fish at alarming speeds, discover all six Quantum Sharks, and push your understanding of mysterious singularities far beyond what anyone asked for.
Important Features:
Throw rocks to scare fish into the black hole
Stock the pond with fish
Upgrade your stockers (and everything else)
Catch fish in the wild
Compare your fish to only use the best
Research your fish for science
Paint and Inject your fish to Maximize their profitability
Cross-breed your best fish in the hatchery to Discover new traits and Optimize your profits
Fire your favorite fish out of a cannon to trigger bonus effects
Operate a particle collider for science!
As your operation grows, you will start to uncover the true mystery of the Fishy Business, and its equally fishy clientele. The upgrades keep coming, the payouts get bigger, and the whole thing starts to feel bigger than just fishing.
Where are these fish going? Who is paying you? Don't overthink it, let's just catch some fish!
Screenshots
13 images
Version Information
Steam Patch Notes
Official update history
Added FPS Limiter
Added Bleach achievement to prevent confusion for new players (code is added, I will set up the actual achievement soon)
Added more story beats on compression events
Added 2 new animations for prestige and game won
Fixed achievement triggering early
Ensured that windowed mode always shows the window border
Added custom fish names (and fixed hatchery name replication).
Notes:
This patch contains the first real additions to the game since launch, along with a few bug-fixes. This mostly appeared in the tutorial/story text and related animations. The ending is a little better, but I'm still playing with a few final elements. I have a small story beat planned at the ending isn't really foreshadowed, so I'm adding a few more small bits of text throughout the game to support it.
I am close to done with the OST integration as well. Once these smaller changes are in, I'm going to start focusing more on the first major update. This will take some time (probably a month or two), so if you are interested in being involved, consider hopping on the Discord server for more frequent updates. I'm always looking for players who want to try out new builds before they go live. https://discord.gg/4S3mfzNenY
TL:DR - If you enjoyed the game and are waiting for a big update before playing again, this isn't it. I'm working on something a bit more substantial that will be worth coming back to. If you're looking for an excuse to play the game again, there are a few new bits of text and animations to discover, but no major mechanical changes.
Fixed an issue from the last patch which causes some cards in the hand to be invisible under certain circumstances
Multiple performance updates - frame rate is up to 3X lower :) Mainly targeted hatchery and fish scoring
Notes:
I'm hoping that this will be my last small patch after launch. I have a few areas of the game that I want to re-visit, both parts that were rushed in the final month of development (like the game over screen), and areas where I've gotten feedback from players (looking at balance across the mid-game and late game, along with ongoing improvements to the Codex and tutorials/tool-tips. My current goal is to start releasing one patch per week instead of every 1-2 days so I can include some larger changes and provide time for testing. Expect more roadmap details early next week.
Traits are now in 2 columns in the fish card.
Fish cards grow on hover so they are easier to read.
Fish card text is slightly larger as well.
Misc. performance improvements and bug fixes (sorry, I forgot what I put in here...)
The eye trait regression has been fixed.
Notes:
I have chased down some of the crash reports that players sent me, and have concluded that the "game won't start" issues are most likely due to older graphics cards and/or drivers. We use Vulcan, which is a newer technology. I'll push an OpenGL compatibility build to a separate branch soon - that might enable older devices to run the game. You can also try running the game with the following command arguments: "--rendering-driver d3d12" or "--rendering-driver opengl3"
The crash reports I received (2 in total) were due to actual issues in the game code, so I was able to fix those
I do have a fairly large performance update in the works - it seems to be working, but I want to test it a bit more before pushing a patch. Believe it or not, but having 2000 fish wasn't the problem. The problem was creating and scoring them all. (In case you are curious, yes, I was already batching the fish on the GPU, but I was scoring them one at a time. It turns out, scoring 20 fish per frame is 10X slower than drawing 2000 fish XD. Just goes to show, the profiler is your friend...)
The game is out there, and people seem to like it, so I'm finally starting to slow down a bit. I also took an evening to watch YouTube and get nothing done. Normally, that wouldn't be a win, but after weeks of only working, it felt nice to waste a bit of time :) I am working on the first post-launch update (excluding bugfixes), as well as a longer-term roadmap, so I will share those in the coming days.
Cleaned up some UI elements, more clarity in the Fish Lab
Made quick scan 3X faster when scanning consecutive already-unlocked cards
Performance improvements in the late-game (more to come)
Added another cannon upgrade to make sardinos less scarce
Note:
There is an unlabeled hotfix before this one - traits got hidden on the fish cards. I noticed it right after pushing the patch, so it was only live for a few minutes. If you see that issue, make sure you update :)
Note:
Thank you everyone for the feedback this week. I'm going to look into fixing some of the UI issues next (especially font size on the fish cards). I also have a small economy adjustment for sardinos coming which should ensure that the LHC can stay running continually in the late-game.
I'm seeing a lot fewer bug reports now, which is good. From what I can tell, stability issues are more related to the rendering engine than any code issue, so I'll add some graphics settings where possible to reduce the strain on lower-end devices. Frame-rate issues are CPU-bound, meaning I can fix those more easily in the coming days. If you can't launch the game, or get a crash/hang anywhere, please reach out. I'm only hearing a couple of reports at this time, but will continue to investigate.
Fix multiple display issues
Currency patch - all numbers should display correctly now
Prevent tool-tips from spawning as sub-windows (was causing FPS monitor to snap to the tool-tip)
Hatchery navigation fixed - broken in hotfix 4
Add tool-tip descriptions in a few places - will add more
Removed Sardino cost from the fish lab - trait injection costs money only as indicated by the UI. We may bring this back in a balance patch in the coming days.
I was able to confirm that one of the achievements still wasn't firing after the last patch. That is fixed now.
I also added some extra checks when loading a save.
Income indicators on the black hole are reporting correctly for very large sums.
Note:
Thank you everyone for reporting issues! I haven't heard any major reports since the last patch, so I believe we are back to where we should have been at launch. I will continue to investigate things as they come up.
Fixed fish freezing in expeditions after timer expires
Added extra safeguards when loading a save. Auto-saving is more reliable and slightly less frequent. If a save fails, all saves and auto-saves will be copied to a new folder before attempting to load or recover.
Hatcheries were only auto-advancing when selected. Now, all hatcheries promote all fish when ready
Also increased the hatchery trait limit back up to 8. Allowing more traits to stack was a bug, but a happy accident (when not causing larger problems)
Ensured that all achievements can fire, check and re-try if something is wrong.
Misc small changes.
Note:
The first hotfix yesterday was meant to address the biggest issues I was seeing, but it ended up introducing a lot of bugs. Unfortunately, some player's saves were lost. If you were affected, please reply here (or ping me on Discord), and I can help you re-create the save to the best of my abilities. If you already commented in a discussion or left a review, I'll reach out today.
With that said, we now have additional safeguards around loading saves. If a save fails, you will see a message, and all saves will be copied to a backup folder before continuing. If this happens, please consider sending me your save file. I haven't been able to corrupt a save yet myself, so I could use help identifying the issue there.
Other than that, the fixes in the hatchery should improve the late game a good deal. I was always intending for automation chains to be a big part of this section, but auto-advance requiring supervision made the system more painful than fun. This was a bug, and is fixed.
Also, I reduced the Hatchery trait limit back to the intended design (4 max per fish, so it matters which ones you choose).
I like the idea of expanding this in the future, but I want to make sure that any exploits make the game more fun/playable, not just broken. There are some fun multipliers in the late game that I want you guys to find and figure out :)
Fixed mass stall around 2 billion
Fixed currency rollover issue (partial fix)
Corrected a few invalid costs (stocker price drops)
Fixed speed scanner prestige upgrade
Some achievements were firing conditionally based on how you moved cards (clicking vs dragging)
Hey friends!
We just pushed our first post-launch patch.
First off, I want to apologize for the delays on the Day 1 patch. I had all of the changes ready 12 hours ago, but I couldn't get the game to launch (any version, including the released version). After way too many hours of troubleshooting, I discovered that the fans were no longer spinning on my graphics card. That would do it ːsteamfacepalmː
Anyways, we are back up and limping, so I was able to get a few major issues pushed. I'm going to try to do smaller, more frequent patches going forwards so I don't get stuck pushing a large batch of changes.
There are a few major issues remaining which I am looking at now.
1. One, the Hatchery allows you to bypass the 4 trait per fish limit that I intended. This is making most of the late-game trivial, which was not my intention. The goal was for the money economy to top out around $1T, so all costs were balanced around that range.
2. One of the Steam achievement issues has been fixed, but there is still a problem where achievements don't re-trigger if the Steam API misses it the first time. This means that some players can't get some achievements for arbitrary reasons.
3. There isn't nearly enough text/tutorial/tooltips, and some of the UI is still a bit weird/unintuitive.
I'll get back to work, and I hope to have the next patch out in much less than 24 hours :)
Thank you all for the overwhelming response, this has been an amazing launch (despite the bugs and hiccups)
Current Release
23165676
Uploaded Jun 14, 2026
System Requirements
How to Install
Black_Hole_Fishing.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
135 MB
23165676
CE033875
fe1900943827c131dc655affc636525db87c81d2cc91d59cc0c952283dcf0ff1
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