Name: COIL — Snake Arena
Author: pisty

About this app

Grow. Outsmart. Dominate. An original 3D snake arena for Hackemist, with intelligent computer rivals, five power-ups, Arena, Rush and Zen modes, playable strategy drills, unlockable skins, daily goals and automatic progress recovery.

Requirements

JavaScript and a modern browser. WebGL 2 enables 3D; Canvas 2D provides a playable fallback. Keyboard, mouse or touch. Signed-in connected Hackemist player for account sync, save slots and recovery. All game assets are bundled for offline play.

Credits

Original COIL game design, code, procedural 3D visuals, interface illustrations and synthesized audio created for Hackemist. Three.js 0.180.0 by the Three.js authors, MIT license included. Inspired by classic snake arena mechanics; not affiliated with Slither.io.

Release notes

Launch edition: 3D snake arena with ten AI rivals, five power-ups, Arena, 90-second Rush and safe Zen modes; six strategy lessons with quizzes, three playable drills, coaching, six earned skins, daily goals, run reviews and notebook. Complete match snapshots, automatic Hackemist SDK checkpoints, explicit recovery, guest device saves, responsive touch controls and 2D fallback.

Desktop Arena with computer rivals, local leaderboard, minimap and controls.

Actual Arena gameplay against ten computer-controlled rivals. Rankings describe this simulation.

Phone skin collection with original colorways, XP requirements and equipped state.

Six skins unlock through earned experience; displayed progress belongs to this temporary local session.

Phone Academy lesson list showing Find your flow completed, with movement guidance and the quiz section below.

A completed movement lesson and its strategy explanation. The player answered the quiz during this session; the quiz controls are further down the contained panel.

Paused Zen run with current score, food count, elapsed time, settings, return and resume controls.

The pause screen preserves the current 3D arena and offers a deliberate finish-and-review action. The gameplay behind the dialog remains paused.

Run review in short phone landscape with score, food collected, boost time and replay or return actions.

A real completed Zen run with measured food and boost usage. The coach note remains accessible inside the dialog's scrolling content.

Tablet completion screen for the Magnet training exercise.

The playable exercise completes when the player collects its Magnet power-up.

Journey with completed preview runs, real statistics and milestones.

Statistics reflect the real runs and lessons completed during this recording.

A 42-second silent recording of the running app: food collection in Zen, pausing and finishing a run, completed strategy quizzes, a playable Magnet drill, earned skins and journey statistics, then Arena gameplay with computer rivals and keyboard steering. A temporary local preview save is used. No live account or cross-device sync test is shown.