Astrar io is another, multiplayer, space shooter similar to Starblast.io, only worse graphics and fewer upgrades. Shoot the asteroids to get points and make upgrades. Try not to crash into asteroids, because your aircraft to be harmed. Enjoy and share with your friends!
Use WASD or Arrow keys to fly, mouse to aim and shoot, some ships have special abilities that can be activated with either pressing or holding the right mouse-button.