Paper.io 2 is a popular .io game

The goal in Paper.io is to fill up as much territory as possible, without being eliminated by an enemy.

You are safe while in your territory, but as soon as you exit it, you leave behind a tail. Don't let anyone touch it!

.io games are a popular genre of simple games, where it is you vs. enemies. You can jump in and play at anytime. .io games were inspired by agar.io, the original .io game, made in 2015.