Slither.io is the rare 'viral' game that actually has the depth to sustain its popularity years after launch. It’s a brilliant fusion of the classic 'Snake' mechanics and the massive multiplayer 'Agar.io' format. The beauty of Slither.io is its perfect balance; a tiny snake can take down the largest player on the board with a well-timed dash, making it a game where skill and strategy often trump sheer size.
The controls on mobile are surprisingly refined, with the 'arrow' mode being the most precise for high-level maneuvers. The lag issues that plagued the game at launch have mostly been smoothed out, providing a much more consistent competitive experience. It’s an exercise in risk-reward—do you stay safe on the edges, or dive into the 'death piles' of light to grow quickly? It’s addictive, frustrating, and incredibly rewarding all at once.
Version 2.3.5Mon Nov 10 2025
New skin options!
Improved controls!
Play against other people online! Can you become the longest slither of the day?
In slither.io, even if you're tiny, you have a chance to win. If you're skilled or lucky, you can swerve in front of a much larger player to defeat them!
Boop or be booped! If your head touches another player, you will explode and die. But if other players run into YOU, then THEY will explode and you can eat their remains!
slither.io is the real online multiplayer slithering game!
Are you a snake or a worm? You're a slither!
Download now and start slithering!
Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.Play against other people online! Can you become the longest slither of the day?
In slither.io, even if you're tiny, you have a chance to win. If you're skilled or lucky, you can swerve in front of a much larger player to defeat them!
Boop or be booped! If your head touches another player, you will explode and die. But if other players run into YOU, then THEY will explode and you can eat their remains!
slither.io is the real online multiplayer slithering game!
Are you a snake or a worm? You're a slither!
Download now and start slithering!


















In slither.io, you start as a small worm and grow by consuming glowing orbs. If your head touches another player, you will explode and it's game over. But if you get others to run into YOU, they explode and you can eat their remains! Use the boost feature to outmaneuver opponents in this highly addictive, global multiplayer battle for survival.
Don't chase high-ranked players immediately. Stay on the outskirts to grow safely until you are large enough to 'coil' smaller snakes.
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Double-tap and hold to boost. Use this speed to get in front of an opponent's head, forcing them to collide with your body.
Yes, using the boost speed consumes some of your length, so use it strategically.