We collected 398 of the best free online .io games. These games include browser games for both your computer and mobile devices, as well as apps for your Android and iOS phones and tablets. They include new .io games such as and top .io games such as …

Io games are free, the full game is available without extra payments, and you can play on your browser every time. What are the most popular .io games? With the sheer number of .io games out there, it can be hard to figure out which ones are worth a shot, so we've collected a list of 10 of the best .io games out there. Build Royale; Shell Shockers

IO Games are a genre of free realtime multiplayer online games that you can play in your browser without needing to install anything or create an account. The first io game was agar.io. IO is a domain extension which stands for "Indian Ocean" but it is a favored domain extension by game developers because it also stands for "in / out."

Where free .io games started. The genre of .io games started with the success of the game Agario, which was created by the 19-year-old Brazilian developer Matheus Valadares. In this game, players control a cell floating around in a large Petri dish full of other cells. You can eat agar pellets or gobble up other players’ cells to grow.

.io games are multiplayer games that never stop. You can take on other players from all around the world in endless battles or competitions that go around the clock, 24 hours a day! The term ".io game" dates back to 2015 when the very first one went online using a .io domain based in a region called the British Indian Ocean Territory.