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How To Grow a Black Hole
How To Grow a Black Hole is about... well... how to grow a black hole. Manage your black hole, feed it to gain mass, and prevent catastrophic collapses. Compete globally or against your friends to achieve the biggest black hole. Maybe you'll be #1.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.
“An honest review from an idle game dabbler: First off let me say this game is very impressive even if it isn't everyone's cup of tea. The mechanics of balancing the growth of a blackhole while not collapsing it is very unique and fun. There are some strange accusations that this…”
— a player, Steam review · 29 hrs played“my big black hole is massive and it sucks everything in”
— a player, Steam review · 74 hrs played“The use of AI is really obvious and the actual loop is pretty boring. Then you ask me to fill out a survey after my first play session, that's something I've truly never seen before. Here's my feedback. EDIT: If the dev wasn't being so shady I would tend to be more sympathetic…”
— a player, Steam review · 6 hrs playedAchievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Hot Fix - Post Processing Bug
Fixed a bug that caused disabling post-processing to break the game. :)
Curvature and QOL
Curvature Reward Changes Collapse Curvature rewards have been adjusted to favor larger black holes more heavily instead of rewarding pressure-heavy runs as much as before. This is a balance change I w
Desktop Stability Update
Draggable HUD panels, hybrid GPU stability, and desktop polish. Thank you for the continued reports, especially around hybrid graphics and HUD layout. This update adds draggable panels, strengthens GP
25,000 COPIES SOLD!!!
25,000 Copies Sold in Less Than 3 Days Wow. I honestly do not even know what to say. How To Grow a Black Hole was never expected to become a hit, and I never imagined this many people would be playing
The Click Actually Clicks Now Hotfix
This small hotfix addresses a couple of issues reported after the latest update. Fixed Fixed feed source and black hole upgrades requiring a hold even for a single purchase. Clicking now buys one upgr
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-25.
| Genres | Casual, Indie, Simulation |
| Player tags | Casual · Simulation · Idler · Colorful · Realistic · Space · Sci-fi · Automation · Singleplayer · Indie · Physics · Incremental (Steam store community voting) |
| Features | Single-player · Steam Achievements · Custom Volume Controls · Mouse Only Option · #category_playable_at_your_own_pace · Playable without Timed Input · Save Anytime · Steam Cloud |
| Languages | English, German, Spanish - Spain, Arabic, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Hindi, French |
| Achievements | 18 |
| Official site | https://desolationdigital.com/how-to-grow-a-black-hole |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 (64-bit) Processor: Dual-core CPU (e.g. Intel Core i3 / AMD equivalent) Memory: 4 GB RAM Graphics: DirectX 11–capable GPU with WebGL 2 support (most recent integrated GPUs qualify) DirectX: Version 11 Storage: 500 MB available space