Try playing Agario, a horribly addictive browser game, a massive free-for-all, a game where everyone tries to eat everyone, watch out for viruses!
A retro styled action twitch game and the predecessor to Super Hexagon.
Superhot is a first person shooter where time moves only when you move, dodge and kill enemies in style!
A game that pushes you to try and do up to 4 things at once, and then makes your life continuously harder.
Collaborate (or not) with tons of other players to progress further to the end of the game. Use Shift+Left Click to draw and communicate with the other cursors!