List of IO games

Play the latest io games like and popular games like Desire IO and Games are sorted by the number of games they received on in the last week.

IO Games is a genre of free real-time multiplayer online games that you can play in your browser without having to install anything or create an account. The first io game was IO is a domain extension that stands for "Indian Ocean", but it is a favored domain extension for game developers as it also means "in/out”.

History of IO games

The io game genre began with the release of an insanely addicting game called (which was probably inspired by another game called "Osmos"). Agario grew so fast that within a few months it already had several hundred thousand players around the world. What made this io game so unique is the very interesting style. Unlike most browser games of the past, it was designed to be played in a full-screen browser window and was fully multiplayer. This set the stage for many more .io games to hit the web in the coming months.

New IO games, rules for success

The most fun and successful new io games like,,, and follow these general rules:

Give the player the opportunity to immediately jump into the game with one click.

Let it be very easy to learn, but difficult to learn, like in the krunker io game.

Let the player "scale" their authority in the game compared to other players. (For example, in you get much bigger and scarier the more you eat and scale your size.)

Last but not least, they either compete or cooperate.

Sliterio is a good example. This is a very simple game with easy controls. No experience is required to start playing, which means that people can get comfortable very quickly. Despite this, the game is difficult to master.

Simple, clean graphics also deserve mention as a current feature of the genre.

Why create a list of the best IO games?

After I found the first few popular io games, I tried to find more. Unfortunately, without a list, they were very hard to find. I felt that they deserved more attention, so I decided to create my own list. I collected all the names I could find, and many helpful users shared new ones with me. From that moment on, my task was to push the io movement forward!

On this site, you will find that the games on the list share a similar style and theme to those mentioned above. The purpose of the list is to highlight these amazing .io games that often go unnoticed. This is because they are all standalone games, which means they are all hosted on separate sites. That's what I'm here for! So support the games and make sure you bookmark this site. (CTRL-D) I try to update it with the best new io games every day, so be sure to check back here from time to time. Have fun!

HTML5 Game Definition

HTML5 games are primarily played online and are compatible with a wide range of devices, from desktop computers to smartphones and tablets.

HTML5 (the most commonly used term) combines modern web technologies (HTML 5 markup, CSS 3, and Javascript) to create complex multimedia applications. The HTML5 game allows you to play directly in modern web browsers without the need for third-party plugins. As such, it has now replaced the discontinued Flash and Unity web players as the technology of choice used to create games for the web browser.

Disadvantages of HTML5 Games

While they have the advantage of allowing play on mobile devices over the Internet, HTML5 games have some significant disadvantages when compared to web browser games built using older plug-in technologies such as Flash.

Most of these issues are due to the fragmented nature of the various web browsers used to play the game. Many of these problems can now be solved with tried, tested, and actively maintained libraries and engines for creating HTML5 games.