Rotatron

Neon arcade puzzle: spin the ring, match the hex, don't let the heat die.

Tap a vertex. Six triangles rotate 60° clockwise, carrying their colors around the ring. Line up six of the same color around any vertex and the hex shatters — points, cascades, and a jolt of heat to keep your run alive.

The heat bar drains constantly. Empty means game over. Every clear refills it, but the gains are quadratic — clearing two hexes in one wave is four times the heat of clearing one. Bigger setups, bigger cascades, bigger survival.

How to play

• Tap a glowing vertex to spin the six triangles around it.
• Match six of a color to shatter the hex.
• Chain refills into more clears — each cascade depth doubles the score.
• Survive the heat drain and push into the next phase.

Features

• Four phases, four worlds. Arcade Neon → Toxic Reactor → Deep Void → Solar Burn. Each phase swaps the palette, music, and visual theme mid-run.
• Cascade-driven scoring. Stack phase × cascade × multi × fresh × bonus-color multipliers.
• Edge phantoms. Boundary spins pull in hidden colors from outside the board — a get-unstuck mechanic that rewards deliberate play.
• Freshness bonus. Hit fast and keep the multiplier high. Stall and it decays.
• No ads. No trackers. No paywall. No energy meter. Just the game.

Install it

Rotatron is a Progressive Web App. On mobile (iOS Safari / Android Chrome) or desktop (Chrome / Edge), add it to your home screen or install it from the address bar and it launches fullscreen — no browser chrome, and it works offline after the first load.

Controls

• Tap or click a vertex dot to spin.
• Press P or the pause button to pause and plan (heat freezes).
• Mute toggle is in the bottom-right.

Built with

Three.js, custom GLSL shaders for the nebula and starfield, selective bloom, and a lot of late nights. Co-written with AI copilots (Claude Code and OpenAI Codex). Design and final calls are mine.

Made by Marco van Hylckama Vlieg under AI & Design Game Studios. If you enjoy it, a tip on Ko-fi keeps the weird little games coming: ko-fi.com/aianddesign