Effective: June 2025 · Last reviewed: June 2025
ChainReact — Fusion Burst uses a deep ember-orange palette inspired by nuclear chain reaction diagrams. It is a one-click puzzle where tapping an atom starts an explosion that spreads to nearby atoms. Starts with 10 triggers. Free for personal entertainment; no account or payment required.
No purchases. No currencies. No loot boxes. No gambling. No prizes.
Using ChainReact means you accept these Terms. You're free to stop at any time.
No payment screen, no virtual economy, no randomised paid rewards, no premium unlocks, no prize competitions.
Personal non-commercial play only. Automated scripts, bots, and commercial redistribution are prohibited.
All game design, code, art, and branding belong to the ChainReact team. Google Fonts are used under the SIL Open Font Licence v1.1.
ChainReact places atoms on a field. One click triggers an explosion with a 55px radius chain radius. Explosions spread to nearby atoms within range, creating cascades. Blue shield atoms must be hit twice. Red pierce atoms bypass shields. Each trigger costs 1 from the trigger count. Clearing 60% of atoms advances the wave and awards a completion bonus. Atoms and chain radius parameters increase each wave.
Mechanics are explained on the in-game start screen. Difficulty parameters may be adjusted in future updates.
Provided "as is" without warranty. No guarantee of uptime or local score preservation.
As the game is entirely free, our total liability shall not exceed zero.
We collect no personal data. See our Privacy Policy.
These Terms may be updated. Continued use signals acceptance.