Eat the light, cut them off

A huge round arena scattered with light orbs, a worm that never stops moving, and about thirty rivals after the same food. Grow long, boost through the gaps, and steer your length in front of somebody before they do it to you.

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Genre: Arena survival
Controls: Touch
Mouse
Keyboard
Devices: Desktop
Tablet
Mobile
Released: 2026

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Worm Arena

Worm Arena is a multiplayer-style arena you play on your own against bots. You steer one glowing worm with the pointer, it never stops, and every light orb it swallows makes it a little longer and a little thicker. There is one rule and it cuts both ways: a worm dies the moment its head touches another worm's body. Ram your head into someone and you are finished. Slide your length across their path and they are the one bursting into a feast of orbs for everyone nearby.

Boost when you need to close a gap or get out of one. Boosting spends your own length and drips it behind you as orbs, so a long chase costs real size and lights a trail for whoever is following. The rivals are not all the same. Rookies wander into trouble and into you, regulars farm quietly and make the occasional silly mistake, sharks cut across your path the second you drift too close, and the biggest worms curl into slow circles to trap anything smaller. The edge of the arena is a bright ring that knocks you out on contact, so the minimap in the corner is worth a glance.

The board on the right stays live: a top ten, your rank out of everyone in the arena, and a feed of who just ate whom. Rivals join and leave the way they do in any busy arena, the ones that die are back in seconds, and the count drifts between the mid twenties and the high thirties. Pick a name and a skin on the way in, fire one of four emotes with the number keys, and when you are finally eaten the card shows your length, your rank and how long you lasted. Rounds are quick, your best length and best rank are kept on your own device, and a new high score is usually one more run away. It plays in the browser on a desktop and on a phone in portrait, with a virtual joystick and a boost button.

Tips for Worm Arena

In Worm Arena one rule decides everything: your head must never touch another worm's body. Keep clear of the bigger worms early on and grow by collecting light orbs in quieter parts of the arena. Once you have some length, turn the rule around by steering your body across a rival's path so its head runs into you; when a worm bursts, its orbs go to whoever is close.

Boost sparingly. It closes a gap or gets you out of one, but it spends your own length and leaves a trail of orbs behind you. Learn the rivals: rookies blunder into trouble, regulars farm quietly, sharks cut across you if you drift too near, and the biggest worms curl into slow circles to trap smaller ones, so never follow a large worm into a loop. Glance at the minimap now and then, because touching the bright ring at the edge ends your run.

Frequently asked questions

Is Worm Arena free to play?

Yes. Worm Arena is free to play in your browser on Kiloo, with nothing to download and no account to create. Pick a name and a skin and you are in. Your best length and best rank are kept on your own device.

Can I play Worm Arena on my phone?

Yes. On a phone held in portrait you drag to steer with a virtual joystick and hold BOOST to sprint. On a computer you point with the mouse to steer and hold the mouse button or Space to boost. P pauses and M mutes.

Are the other worms in Worm Arena real people?

No. Worm Arena is played on your own against computer-controlled worms. They come and go as in a busy arena, usually around thirty at a time, and each kind behaves differently, from careless rookies to sharks that cut across your path.

How does boosting work in Worm Arena?

Hold the mouse button, Space or BOOST to sprint. Boosting spends your own length and drops it behind you as orbs, so a long chase makes you smaller and leaves a glowing trail for any worm following you. Use it in short bursts.