io games are a popular genre of online multiplayer games that run directly in your web browser. They are known for simple controls, fast-paced gameplay, and real-time competition against players from around the world. Most IO games do not require downloads or registrations, making them easy to start and hard to stop.
The name “IO” comes from the domain extension .io, which was originally associated with these games. Over time, it became a label for lightweight, competitive browser games focused on quick matches and instant fun.