.Io games have several common features that set them apart from others. First of all, you always play online, connected to the internet, in total multiplayer mode . Each game, in fact, sees dozens of players face each other together who try to eliminate each other and excel each other, without any alliance and each with their own game strategy.
The other common feature is that of being ultra minimal games, with essential graphics, where the players are represented by little balls or stylized men or vermicelli just to give some examples. Usually, in IO games each player enters into games that are already in progress and that never end, trying to survive and eat the other players to get bigger and bigger. In other .io games, on the other hand, these are just a few minutes' games against other players and it can also be a competition.
The extension ".io" indicates the top-level domain of websites (such as .it or .com) in the British Indian Ocean Territory. Starting from Agar.io, one of the first games of this genre to have had extraordinary success, the .io extension has become used for all similar games giving practically name to the genre. The .IO games had an extraordinary success in the two-year period between 2015 and 2016 and have returned to great success this year, with new titles and new challenges. Since there are now many, it is worth making a list with the 10 best IO games to play via browser on PC or to download on Android and iPhone smartphones, that are free, that have many players to challenge each other and that are super fun .
READ ALSO: Best Multiplayer games for Android and iPhone
1) Agar.io was the first game of this genre to have extraordinary success in 2015, a survival game where players eat with each other. It starts with a small circle that eating the food found around it gets bigger and bigger until it grows enough to eat other players, while trying to escape from the bigger players. With extremely simple gameplay and graphics, it went viral after it was also featured in an episode of House of Cards. Agario can be played on Android and iPhone smartphones and also from browsers on PC.
2) Slither.io was one of the most played games in 2016, inspired by Nokia's classic snake game, which gets longer and longer by eating food. In Slitherio, in addition to food, you can also eat the other players and get bigger and bigger. Compared to Agario, Slitherio is a little more complex and slower, with players being eliminated when their snake's head collides with another snake's body. You can then use strategies to wrap and trap other players in order to absorb and eliminate them from the game. Slither.io can also be played via the website or on Android and iPhone.
3) Paper.io 2 for Android, iPhone and website, the sequel to Paper.io 1, can be considered the most successful .io game ever, still stably in the rankings of the most played games on Android and iPhone . In Paper.io, players move around leaving a colored trail on the screen, with the aim of coloring as much space as possible. The colored space filled by a player becomes an area that others cannot touch. The space is colored by closing an area, while the players are eliminated if their trail is touched when they are outside their colored area, therefore when they are trying to acquire new living space.
4) Hole.io, playable on website, Android and for iPhone, is the most popular io game of 2019, with players who have to move black holes capable of absorbing any object they find in their way, if it is smaller than the hole, getting bigger. When two players collide, whoever has the biggest hole absorbs and eliminates the other, with a dynamic and gameplay that is quite similar to that of Agario. Hole.io is quite funny also because the holes move over a city scenario, with the possibility of swallowing people, machines and even entire buildings in the hole.
5) Diep.io, available on PC via website, for Android and iPhone, is another very popular io game, with players who control tanks to move on the screen and shoot by destroying obstacles and enemy tanks to collect points and level up your machines. The upgrade system allows you to equip the tank to make it more powerful, more agile or more precise. There are different game modes such as full-field battles or group battles that increase Diep.io's desire to play again, which remains simple, but certainly more exciting and competitive.
6) Snowball.io, playable on PC via website, Android Smartphone and iPhone, is the game of snowball fight. Moving a snow sweeper on the painting, you touch the screen to create the snowball making it bigger and bigger, with the possibility of throwing it against the other players. Whoever is not pushed off the island and who eliminates the other players wins.
7) Aquapark.io, playable on PC via web, Android and iPhone, is a speed race on a water slide, where whoever arrives first at the end of the slide wins, but where you have to be careful of both the traps that you encounter, is not to fall below. The race is really fast and with all the players running together.
8) CrowdCity.io, available as a browser game on PC and as a game on Android and iPhone is a classic I game, which makes you laugh a lot for your idea: you have to create the largest crowd of people of all. You then walk through the streets of a city with a colorful little man who, when he meets other people, convinces them to follow him, creating an ever larger crowd. If two players collide, whoever has the largest crowd absorbs the other and eliminates him.
9) Brutal.io, available as a browser game on PC and as a game on Android and iPhone has a very appreciable spatial graphics and is played by moving a machine that has a weapon on its tail to grow and use against others to eliminate them.
10) Zombsroyale.io, game on PC, for Android and iPhone smartphones is the most complex game on this list, a Fortnite style battle royale with a top view, weapons to collect and many players to challenge to eliminate them, being careful not to get caught.
READ ALSO: Best 20 online games: free, action, multiplayer
The other common feature is that of being ultra minimal games, with essential graphics, where the players are represented by little balls or stylized men or vermicelli just to give some examples. Usually, in IO games each player enters into games that are already in progress and that never end, trying to survive and eat the other players to get bigger and bigger. In other .io games, on the other hand, these are just a few minutes' games against other players and it can also be a competition.
The extension ".io" indicates the top-level domain of websites (such as .it or .com) in the British Indian Ocean Territory. Starting from Agar.io, one of the first games of this genre to have had extraordinary success, the .io extension has become used for all similar games giving practically name to the genre. The .IO games had an extraordinary success in the two-year period between 2015 and 2016 and have returned to great success this year, with new titles and new challenges. Since there are now many, it is worth making a list with the 10 best IO games to play via browser on PC or to download on Android and iPhone smartphones, that are free, that have many players to challenge each other and that are super fun .
READ ALSO: Best Multiplayer games for Android and iPhone
1) Agar.io was the first game of this genre to have extraordinary success in 2015, a survival game where players eat with each other. It starts with a small circle that eating the food found around it gets bigger and bigger until it grows enough to eat other players, while trying to escape from the bigger players. With extremely simple gameplay and graphics, it went viral after it was also featured in an episode of House of Cards. Agario can be played on Android and iPhone smartphones and also from browsers on PC.
2) Slither.io was one of the most played games in 2016, inspired by Nokia's classic snake game, which gets longer and longer by eating food. In Slitherio, in addition to food, you can also eat the other players and get bigger and bigger. Compared to Agario, Slitherio is a little more complex and slower, with players being eliminated when their snake's head collides with another snake's body. You can then use strategies to wrap and trap other players in order to absorb and eliminate them from the game. Slither.io can also be played via the website or on Android and iPhone.
3) Paper.io 2 for Android, iPhone and website, the sequel to Paper.io 1, can be considered the most successful .io game ever, still stably in the rankings of the most played games on Android and iPhone . In Paper.io, players move around leaving a colored trail on the screen, with the aim of coloring as much space as possible. The colored space filled by a player becomes an area that others cannot touch. The space is colored by closing an area, while the players are eliminated if their trail is touched when they are outside their colored area, therefore when they are trying to acquire new living space.
4) Hole.io, playable on website, Android and for iPhone, is the most popular io game of 2019, with players who have to move black holes capable of absorbing any object they find in their way, if it is smaller than the hole, getting bigger. When two players collide, whoever has the biggest hole absorbs and eliminates the other, with a dynamic and gameplay that is quite similar to that of Agario. Hole.io is quite funny also because the holes move over a city scenario, with the possibility of swallowing people, machines and even entire buildings in the hole.
5) Diep.io, available on PC via website, for Android and iPhone, is another very popular io game, with players who control tanks to move on the screen and shoot by destroying obstacles and enemy tanks to collect points and level up your machines. The upgrade system allows you to equip the tank to make it more powerful, more agile or more precise. There are different game modes such as full-field battles or group battles that increase Diep.io's desire to play again, which remains simple, but certainly more exciting and competitive.
6) Snowball.io, playable on PC via website, Android Smartphone and iPhone, is the game of snowball fight. Moving a snow sweeper on the painting, you touch the screen to create the snowball making it bigger and bigger, with the possibility of throwing it against the other players. Whoever is not pushed off the island and who eliminates the other players wins.
7) Aquapark.io, playable on PC via web, Android and iPhone, is a speed race on a water slide, where whoever arrives first at the end of the slide wins, but where you have to be careful of both the traps that you encounter, is not to fall below. The race is really fast and with all the players running together.
8) CrowdCity.io, available as a browser game on PC and as a game on Android and iPhone is a classic I game, which makes you laugh a lot for your idea: you have to create the largest crowd of people of all. You then walk through the streets of a city with a colorful little man who, when he meets other people, convinces them to follow him, creating an ever larger crowd. If two players collide, whoever has the largest crowd absorbs the other and eliminates him.
9) Brutal.io, available as a browser game on PC and as a game on Android and iPhone has a very appreciable spatial graphics and is played by moving a machine that has a weapon on its tail to grow and use against others to eliminate them.
10) Zombsroyale.io, game on PC, for Android and iPhone smartphones is the most complex game on this list, a Fortnite style battle royale with a top view, weapons to collect and many players to challenge to eliminate them, being careful not to get caught.
READ ALSO: Best 20 online games: free, action, multiplayer
