Heliopedia

Planet-building sandbox simulation about shaping climates and discovering new life

Sokpop Collective · Released Oct 12, 2021

Reviews: Very Positive; 86% of 214
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 4 years ago; Nov 22, 2021
Minimum PC: DirectX 9 GPU; 4 GB RAM · 0.3 GB disk; Full requirements

What is Heliopedia?

You manage a solar system in this single-player god-game sandbox, where a friendly sun rewards discoveries with new items. You combine materials using a pseudo-scientific chemistry system to form biomes and populate planets with plants and animals. Discoveries fill an encyclopedia, while feeding coal or ashes to the sun creates more planets.

For you if...

+you enjoy finding new combinations through trial and error
+you prefer a short game over a lengthy campaign

Not for you if...

−you want scientific accuracy rather than make-believe chemistry
−you prefer explicit instructions over figuring systems out yourself

What players say

86% of 214 reviews are positive

Players praise the cute art and calm atmosphere. A recurring complaint is the difficulty of sustaining ecosystems, with players reporting that fully grown plants stop producing oxygen, causing other life to die.

Screenshots and trailer

Heliopedia system requirements

Minimum: DirectX 9 GPU, 4 GB RAM, 0.3 GB of disk space.

As published by the developer.

Can my PC run Heliopedia?

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Minimum

OS: Windows 7
Processor: Dual Core 2 GHz
Graphics: DirectX 9 compatible with at least 500MB of memory
Memory: 4 GB RAM
Storage: 300 MB available space
DirectX: Version 9.0

Does Heliopedia have co-op or multiplayer?

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

Single-player

Does Heliopedia run on Steam Deck?

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

Sometimes shows mouse, keyboard or non-Deck controller icons
All functionality is accessible with the default controller configuration
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Achievements: 14
Steam features: Family Sharing
Languages: Text only: English.

Does Heliopedia 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