Egres.io is a multiplayer puzzle where for passing to the next level you should work together with other players in real time. The game is built the way that you have to press certain buttons which open access to the next level. But the further you go from the first level, the more situations appear which it is not possible to get out to the next level without another player's help.
The main interest of the game is that you will achieve nothing without team work. Probably this is why this game gained such a huge number of fans.
Control: control your movements using a mouse, activate buttons by the left mouse button.