Heat Death

Turn-based roguelike deckbuilder where you battle as a planet

Gallistrix · Released Jul 18, 2022 · Early Access

Reviews: Very Positive; 96% of 68
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 10 months ago; Dec 25, 2025
Minimum PC: DX11-capable GPU; 4 GB RAM · 1 GB disk; Full requirements

What is Heat Death?

This sci-fi deckbuilder puts you in control of a planet in a galaxy threatened by star-like creatures called Apparitions. You collect and play cards to attack enemies and defend yourself while navigating procedurally generated star maps. Death ends your run and sends you back to the start.

For you if...

+you enjoy experimenting with different starting playstyles
+you want tactical card battles with demanding difficulty options

Not for you if...

−you want multiplayer battles rather than solo deckbuilding

What players say

96% of 68 reviews are positive

Players praise card fusion for enabling powerful combinations and varied builds. Earlier reviewers criticize unclear explanations of card effects.

Screenshots and trailer

Heat Death system requirements

Minimum: DX11-capable GPU, 4 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run Heat Death?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS: Windows 7 or newer, 64-bit versions only
Processor: 1.5 Ghz
Graphics: DX11-capable GPU
Memory: 4 GB RAM
Storage: 1 GB available space
Notes: These recommendations are based on an estimate. Try out the free demo if you are uncertain.

Does Heat Death have co-op or multiplayer?

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

Single-player

Does Heat Death run on Steam Deck?

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

Sometimes shows mouse, keyboard or non-Deck controller icons
Some text entry requires manually opening the on-screen keyboard
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, macOS
Achievements: 21
Steam features: Family Sharing
Languages: Text only: English.

Does Heat Death 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