.IO games are browser based games which can be played without downloading anything onto the system. There are many types of io games, from offline to multiplayer experiences, and you can enjoy them on the cheapest computers to high-end gaming PCs.
They do not require any hard disk space, so you can play them even if your machine has a low spec. These games are highly accessible and require no technical knowledge to play, making them a great choice for people who aren't computer specialists.