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Real-Time Multiplayer Arena
Compete in high-frequency 60 FPS snake duels with up to 10 players simultaneously.
Arcadeum
Online Gaming Arena
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Online Gaming Arena
Free online glow-worm arena — slither, survive, eat the lights
Glimworm is a fast real-time multiplayer arena in the slither.io family, redesigned around glowing creatures, dark arenas, and bite-sized rounds. Eat lights to grow, dodge other players’ trails, and outlast everyone else. On Arcadeum you can play Glimworm right in your browser — free, with up to ten players, AI bots, or both.
Compete in high-frequency 60 FPS snake duels with up to 10 players simultaneously.
Consume glowing matter to extend your length and leave behind lethal neon trails.
Sacrifice trail mass to accelerate past opponents and cut off their escape paths.
Zero installation required. Responsive controls on desktop keyboard and mobile touch.
Choose Battle Royale, Time Attack, or Lives + Heats. Invite friends with a shareable link, or fill empty seats with AI bots and start solo.
Your glowing worm spawns at a random spot. Move with the mouse or touch and start eating lights — every light makes your worm a little longer and a little brighter.
Colliding head-first with another worm’s trail ends your run. Cut across smaller worms when you can, but never charge a longer trail head-on.
In Battle Royale, the last worm alive wins. In Time Attack, the highest-scoring worm at the buzzer wins. Either way, staying alive while growing is the whole job.
Customize the arena backdrop and aesthetic vibes.
Epic quests and exploration
Neon-lit dystopian future
Deep ocean depths
Noir detective underworld
Dark and terrifying atmosphere
Mountain summit expedition
Deep space exploration
Magical realms and mythical creatures
Wild West frontier
Ancient Egyptian mysteries
Victorian-era mechanical wonders
Peaceful Japanese aesthetics
Survive in the dark arena by feeding on ambient light energy while eliminating rivals.
Colliding head-first into another worm’s body or the arena boundary causes instant defeat.
Defeated worms burst into concentrated light particles that can be consumed by anyone.
Tactical maneuvers to out-maneuver and trap opponents.
Once you achieve sufficient length, encircle smaller opponents gradually until they have nowhere to turn.
Sprint ahead of parallel worms and sharply turn across their trajectory to force a head-on collision.
Stay near the edges early on to collect energy safely before venturing into the chaotic center.
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Spin up a room and share the link — the arena is glowing.