Grow longer. Coil tighter.

A single-player .io arena, dialed up.

Eat, grow, and outlast a swarm of clever bots in a glowing arena. Persistent fading worm trails, iridescent body shimmer, reactive ambient particles, and cinematic kill moments make every match feel cinematic — without the lag of a real-time multiplayer match.

Coming soon to the App Store

What's inside

Three map themes — Void, Sunset, Cyber
18 base skins across six palettes and four patterns
Kill combos with banner flashes, camera shake, and chromatic-aberration death
Persistent fading trails on the arena floor — no other .io game has this
Iridescent shimmer on the player worm
Power-ups — Magnet, Shield, ×2 Score
Game Center leaderboards and achievements
Daily login streak with cycling coin rewards

Void Sunset Cyber Galaxy Pack Royal Pack

About

Worm Coil is built by Anulfo Acosta, an indie iOS developer. It's a single-player arena game — every "opponent" you see is a bot, so matches start instantly and you never wait on a server.

Free to play with optional rewarded ads for double coins. Optional in-app purchases include theme skin packs ($1.99 each) and Remove Ads ($3.99, no ads ever). See the privacy policy for details.