Gravitygame.io is a nice multiplayer 2d shooter .iO game. Set in a strange world, you are allowed to move from moon to moon without difficulty. When you jump, you will slowly descend towards the nearest planet. That creates some exciting mid-air transfers to other opponents' terrain. With the rocket launcher in hands, you can take out the enemy and earn rankings. Remember to dodge damage by using the low gravity! Let's play and dominate the top spot before you run out of time!