Unstable Nuclear Reactor

An incremental hex-puzzle roguelite game where you merge atoms into higher elements, trigger massive chain combos, earn radioactive coins, and manage your ring capacity to survive as long as possible.

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