STARBLAST io

Starblast.io is space multiplayer shooter game in which you need to destroy other players and upgrade your ship.
Game is played with mouse.

Starblast.io gives you a small ship, an asteroid field and one loop: mine crystals, upgrade your ship, fight whoever drifts close. The mouse steers and fires. Early on you dodge everyone; once you upgrade into a bigger hull, the hunters become the hunted. Ship trees branch into different classes, so each run can take a different shape. A round ends when someone blows you apart, and the climb back is the whole appeal. Veteran .io players rank it among the best in the genre.