Heat Death

Heat Death

Gallistrix · 2022 · Roguelike Deckbuilder, Card Battler, Turn-Based Tactics, Difficult, Card Game

PC
Very Positive97% · 67
Best price
$14.99
lowest tracked $3.74
Steam Buy at Steam

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Steam
Steam
Standard Edition · Steam
$14.99
Buy

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About Heat Death

This ancient galaxy is under attack by the mysterious "Apparitions". They are huge star-like monstrosities which threaten to consume the world. Your planet is controlled using cards which you collect while playing. Creativity and resourcefulness will be the keys to your victory!

Rewrite your cards!


Improve your deck even further by re-writing your cards! The game's unique crafting system is used to fuse cards into each other, allowing you to create insane synergies that feel like cheating. And yet, even with such powerful tools on your side, the enemy still puts up a fight!

Heat Death is in early access, but is almost ready for release - with 5 Planets, nearly 500 cards, and a crazy amount of depth and replayability.
  • The Human planet can swarm its opponents with drones, play defensively by buffing its allies, or stand on its own with versatile weapons and defenses.
  • The Radioactive planet focuses on fierce bursts of nuclear damage, and lays traps which detonate when opponents make their attack.
  • 'Storm' is a desert planet which can recover from almost any attack with its powerful heals and repairs, while steadily growing stronger with every passing turn.
  • 'Ablaze' is a volcanic planet, dishing out vast elemental damage while protecting itself in a veil of ash.
  • 'Sanguine' is a planet of witchcraft. A Sigils and blood moons forebode the end of its enemies.

The game world consists of procedurally generated maps of stars and clusters. Death is permanent – you start from scratch each play session, but you expand your knowledge and unlock higher tiers of difficulties. The powerful deckbuilding and card crafting in Heat Death allows you to explore new strategies with every new attempt. And if you still want more, then there are also cheats and challenges, to make the game even crazier.

What Steam players say

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

✦ AI summary

Players praise this sci-fi deckbuilder for its innovative card fusion mechanic that encourages powerful combos while reducing deck bloat, solid game design with satisfying builds, and meaningful differences between playable characters that offer genuine build variety. Common feedback notes that while the core engine is excellent, the game could benefit from quality-of-life improvements and some design refinements, though players are enthusiastic about supporting its continued development.

Recommended Jul 4, 2026
Heat Death is a surprisingly solid and stylized roguelite deckbuilder that has you playing as planets of all things. The combos you can make are better than I would've expected from such a semi-harebrained concept, and it is very satisfying when a run goes well. However, the content feels limited, and there is surely no way this is going to get expanded, even though it says it is an "early access version" on the game's bootup window still. I got this game for like $2.50 on sale, and that is a fair price.
Recommended Jun 17, 2026
An entertaining deckbuilder game with multiple sci-fi civilisations to choose as your starting point, each with their own unique play styles.
Recommended Mar 5, 2026
A brilliant game, with excellent style and a card fusion mechanic that encourages you to create powerful combos. If you're a fan of deckbuilding roguelikes and want something that puts a unique spin on the genre, this is the game for you.
Recommended Dec 27, 2025
One of the more unique deckbuilders out there. Some interesting aspects that set it apart from others: [list] [*] The game gives you frequent opportunities to combine cards together, allowing you more value for less resources used and less deck inflation as well as some emergent properties from combining cards [*] Satellites can be freely positioned by dragging them around and it has this physical and tactile feel to it. [*] Just really solid design in general. Builds are satisfying to make, cards are impactful, effects can spiral out of control into crazy strong combos. Lots of build variety for each character you can play as. Easy to not see this as "unique" but a lot of deckbuilders forget they have to be good games before looking or sounding good. [*] Not only can you choose the next node in the map, but the maps are themselves in a larger map with selectable nodes. [*] The difficulty modes are more than just "stats up" difficulties and are actually fun to adapt to, but they're also implemented in such a way that they don't just negate builds with their new rules. [/list] Though the graphics might not look like much from the storepage, the aesthetic is actually surprisingly ap…
Recommended Apr 23, 2025
Nice deckbuilder in space
Recommended Jan 4, 2025
It's a good game

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