How To Grow a Black Hole

How To Grow a Black Hole

Desolation Digital · June 23, 2026 · Casual, Simulation, Idler, Colorful, Realistic

Buy How To Grow a Black Hole from Steam at $3.99 — the cheapest of 1 store we compare.

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$3.99
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Where to buy How To Grow a Black Hole — official stores

Steam
Steam
Standard Edition · Steam
$3.99
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How To Grow a Black Hole price by region

How To Grow a Black Hole costs $2.69 in Georgia (USD), £3.59 in the United Kingdom, $3.99 in the United States, €4.15 in Europe (EUR), CA$4.59 in Canada, A$5.75 in Australia, NZ$6.39 in New Zealand, R$15.75 in Brazil and zł16.75 in Poland right now.

Cheapest How To Grow a Black Hole offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
Georgia (USD) $2.69 $2.69 — 1
United Kingdom £3.59 £3.59 — 1
United Statesyour region $3.99 $3.99 — 1
Europe (EUR) €4.15 €4.15 — 1
Canada CA$4.59 CA$4.59 — 1
Australia A$5.75 A$5.75 — 1
New Zealand NZ$6.39 NZ$6.39 — 1
Brazil R$15.75 R$15.75 — 1
Poland zł16.75 zł16.75 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About How To Grow a Black Hole

So what is



How To Grow a Black Hole is a chill incremental game about feeding, upgrading, researching, and barely controlling the most dangerous cosmic object imaginable.

Start small, feed your black hole, increase its mass, unlock new ways to grow, and push the numbers higher and higher until everything starts getting completely unreasonable. Just make sure things do not spiral too far out of control, because catastrophic collapses are very much part of the experience.

It is not a hardcore astrophysics simulator. It is a weird, satisfying, slightly stupid game about turning a tiny gravitational problem into an enormous one on purpose.

A little absurd. A little terrifying. Oddly hard to stop playing.

What you actually do


  • Feed your black hole and watch its mass climb.
  • Unlock upgrades that let you feed it faster, grow it larger, and push the numbers into ridiculous territory.
  • Research new systems to automate growth, improve efficiency, and keep the chaos moving.
  • Prevent catastrophic collapses when your black hole becomes a little too unstable.
  • Compare your black hole’s size and mass to real-world objects, which starts out interesting and gets unsettling fast.
  • Unlock bite-sized black hole facts, including why even a tiny one would be an unbelievable health hazard.
  • Compete globally or against friends to see who can grow the biggest black hole.

Why I made it



Hi, I’m Noah. I made this game in my free time because black holes are genuinely insane, and the idea of raising one like the world’s worst cosmic pet sounded too fun not to make.

I love games with giant numbers, satisfying progression, and simple ideas that slowly get out of hand. This started as one of those ideas that would not leave my brain alone, so I turned it into a real game.

I’m also hoping this project helps support the bigger and more ambitious games I want to make in the future. So by playing it, you are not just feeding a black hole. You are also helping me keep making games.

Who it’s for



If you like incremental games, upgrades, research trees, leaderboards, cosmic horror treated a little too casually, and numbers that eventually stop feeling reasonable, this is probably for you.

If you are looking for strict realism and perfectly accurate astrophysics, this probably is not that. It is inspired by real black hole concepts, but mostly it is about making a cosmic problem worse because it feels good to watch the number go up.

Bottom line



How To Grow a Black Hole is a chill incremental game about feeding a black hole, keeping it stable, and trying to grow it bigger than everyone else’s. It is simple, strange, satisfying, and built around one important question:

How big can you make it before everything goes wrong?

How To Grow a Black Hole — game info

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

What Steam players say

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

Not recommended Aug 30, 2026
boring, not rewarding, and very slow
5 found this helpful
Recommended Aug 30, 2026
I REALLY wish this was Steam Deck compatible. I am sure you can do it with a control layout, I just think it should have already been done by the dev. Other than that it is quite fun to just sit back and relax on!
1 found this helpful
Recommended Sep 26, 2026
It is good for its price
Recommended Sep 16, 2026
the game doesnt seem to be all that balanced. some upgrades like "add disk pressure per processing" (prestige or in game) doesnt do anything. the game loop itself is a bit boring and there arent many animations, so this barely gets a pass.
Recommended Sep 9, 2026
its a good idle game some options can be confusing on what exactly they do but messing around with them can help you understand what they do somewhat which is something i hope the devs fix additionally theres no sound which is not a problem for me but can be for others the graphics are good but itd be better if they added more detailed visuals other than the white dots they sould also add the actual mass/size values for the next level as just looking them up does not match what the game gives you
Recommended Sep 7, 2026
For the price it's a pretty fun game in its category. The main draw is doing it with black holes.

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