EV.io

EV.io is a futuristic Halo-Esque first-person shooter in the browser. Play private games with your friends or play ranked public games. Earn in-game currency based on your performance to purchase skins and other cosmetics. 

How to Play EV.io

WASD to move. Right-click to aim. Right-click to zoom. Space to jump. T for melee. G for the grenade. (All hotkeys can be changed/configured in settings.)