Gravity Wars (itch) (Boris)

Two players take turns shooting from their spaceship a projectile which is affected by the gravitational pull of planets. There is no goal other than destroying your opponent over and over; a score is kept to remind the loser of his great skill. The game is more pleasing if the shots you take are not simple; try to see how many planets you can circle first! 

See the official website: http://gravitywars.yboris.com/