Starblast.io

Starblast IO is an space shooter with remarkable graphics and an exceptional game play. Be part of the galaxy and rule the universum in your personal spaceship.

You can buy upgrades with all of those precious gems you'll earn throughout the game. As well as using gems to buy upgrades, you can convert them into credits to buy additional weapons at your team's base. There are seven ship tiers you can evolve to, as well as enhanced cargo capacities. You'll notice an upgrade menu at the bottom. Gems convert instantly into upgrades for these items. The following upgrades are in order you'll see them: Shield capacity, Shield regeneration, Energy capacity, Energy regeneration, Laser damage, Weapon speed, Ship speed and Ship agility.