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Unstable Nuclear Reactor
An incremental hex-puzzle roguelite game where merging atomic elements prevents a nuclear meltdown.

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Features
Single-player
Steam Achievements
Family Sharing
Steam is learning about this game 
Languages:
Interface Full Audio Subtitles
English ✔
French ✔
Spanish - Spain ✔
Japanese ✔
Korean ✔
Simplified Chinese ✔
German ✔
Russian ✔
Indonesian ✔
Portuguese - Brazil ✔
Danish ✔
Portuguese - Portugal ✔
Italian ✔
See all 13 supported languages
This game is not yet available on Steam

Planned Release Date: Nov 23, 2026

This game plans to unlock in approximately 5 months

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About This Game

An incremental hex-puzzle roguelite game where merging atomic elements prevents a nuclear meltdown.

EASY TO LEARN, HARD TO MASTER

Merge atoms into higher elements through standard merges or massive chain combos, earn radioactive coins, and manage your ring capacity efficiently to keep your reactor running at peak performance. 🚀⚛️

UPGRADE YOUR SYSTEM

Invest your radioactive coins in powerful upgrades, unlock new tools, expand your reactor’s potential, and push your runs further than ever before.

POWER UP YOUR TOOLS

Unlock +20 powerful tool upgrades to boost your efficiency, amplify your combos, and take your reactor to the next level.

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • OS *: Windows 7 or newer
    • Processor: 2.5Ghz or better
    • Memory: 2 GB RAM
    • Graphics: 500 MB available space
    Recommended:
    • Memory: 4 GB RAM
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
    Minimum:
    • Processor: 2.5Ghz or better
    • Memory: 2 GB RAM
    • Graphics: Support for OpenGL 3.3
    • Storage: 500 MB available space
    • Additional Notes: Supports Intel x86 hardware and M1 & M2 chipsets
    Recommended:
    • Memory: 4 GB RAM
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
    Minimum:
    • OS: Linux/X11
    • Processor: 2.5Ghz or better
    • Memory: 2 GB RAM
    • Graphics: Support for OpenGL 3.3
    • Storage: 500 MB available space
    Recommended:
    • Memory: 4 GB RAM
View all

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