Game title: Agma.io
This one is a very unique Io title. While you have to eat other players to become stronger and win the battle as you always do in the games of these series, you have another great opportunity here which is special. Not only you can fight and compete now, but also you are welcome to build teams with other players! This way, you will be able to communicate and cooperate, moving to the aim which is development together. It is easier to reach such a goal when you are playing as a group!