How To Grow a Black Hole

An incremental game about feeding a black hole without collapse

Desolation Digital · Released Jun 23, 2026

Reviews: Mixed; 68% of 606
Recent reviews: Mixed; 66% of 18 in 30 days
Players: 15; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 3 months ago; Jul 4, 2026
Minimum PC: DirectX 11 GPU; 4 GB RAM · 0.5 GB disk; Full requirements

What is How To Grow a Black Hole?

In this single-player idle space game, you increase a black hole’s mass through feeding, upgrades, and research that automates growth. You manage instability to prevent catastrophic collapses, compare its size with real-world objects, and unlock short facts about black holes.

For you if...

+you enjoy idle progression and experimenting with upgrades

Not for you if...

−you want a scientifically accurate astrophysics simulation
−you prefer constant hands-on action over automated progression

What players say

68% of 606 reviews are positive · 66% of 18 in the last 30 days

Players praise the black hole premise, but commonly criticize the repetitive loop and unclear or unhelpful upgrades. A recent reviewer reports that resets break manual feeding until a restart, while another reports being unable to launch the game.

Screenshots and trailer

How To Grow a Black Hole system requirements

Minimum: DirectX 11 GPU, 4 GB RAM, 0.5 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10 (64-bit)
Processor: Dual-core CPU (e.g. Intel Core i3 / AMD equivalent)
Graphics: DirectX 11–capable GPU with WebGL 2 support (most recent integrated GPUs qualify)
Memory: 4 GB RAM
Storage: 500 MB available space
DirectX: Version 11

Does How To Grow a Black Hole have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does How To Grow a Black Hole run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 18
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, German, Spanish - Spain, Arabic, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Hindi, French.

Does How To Grow a Black Hole use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam