Paper IO

About Paper IO

Paper IO is a free multiplayer .io game that you play in your browser, claiming land by looping a cube around the map. The goal is simple: hold more territory than every other player on the board.

You can play Paper IO online with no download and no account. You start on a small patch of land and push out into open ground, drawing a line behind you. When that line loops back to your territory, everything inside the loop becomes yours.

The risk is what keeps each round tense. While you are outside your own land, your trail is exposed, and an opponent who crosses it knocks you out. You can do exactly the same to them, so every expansion is a bet between a bigger territory and a safe return.

Paper IO features

Free to play in your browser, with nothing to install.
Online multiplayer: you share one map with many other players.
Territory capture: close a loop and the enclosed area becomes yours.
Trail-based combat: cutting across an opponent's path knocks them out.
Simple keyboard controls using WASD or the arrow keys.

Tips to get better at Paper IO

Make short loops early. A small, quick capture gets you back to safe ground before anyone reaches your trail.
Stay close to your territory while your trail is long. The shorter the exposed line, the fewer chances a rival has to cut it.
Watch other players' trails as closely as your own. A rival who wanders far from home is a target you can knock out.
Expand in steps rather than one huge sweep. Several modest captures add up and cost you less risk.
Plan your turn back before you leave your land, so you are never stuck in open ground with a trail behind you.

Paper IO FAQ

Is Paper IO free to play?

Yes. Paper IO runs in your browser, so you can start a round right away without downloading anything.

What are the Paper IO controls?

Move your cube with WASD or the arrow keys. There are no other buttons to learn, so you can focus on steering and timing.

How do I win in Paper IO?

Capture more land than the other players. Close loops back to your territory to claim new ground, and knock out rivals by crossing their trails.

Is Paper IO multiplayer?

Yes. You compete against other players on the same map, and any of them can end your run by crossing your trail.

Any Paper IO tips for beginners?

Keep your loops short and your trail brief at first. Return to your territory quickly, and only go farther out when no rival is nearby.

How to play Paper IO

Start the game and find your cube on its small starting territory.
Move off your land in any direction. A trail follows your cube and shows the path you are drawing.
Curve back and reconnect with your own territory to close the loop and capture the area inside.
Keep an eye on rival cubes and their trails. Cross a trail to knock that player out.
Repeat the process to grow your share of the map and aim to hold the most land.

Paper IO controls

W or Up Arrow: move up
A or Left Arrow: move left
S or Down Arrow: move down
D or Right Arrow: move right

Frequently asked questions

How do I play Paper IO?

Start the game and find your cube on its small starting territory.Move off your land in any direction. A trail follows your cube and shows the path you are drawing.Curve back and reconnect with your own territory to close the loop and capture the area… Press the Play button above to start.