Crystal Keeper is a free arcade shooter game for Android developed by VIITORCLOUD TECHNOLOGIES PVT. LTD. In this game, you navigate your spaceship through an asteroid belt to collect crystals while protecting your perimeter from incoming asteroids. The game features intuitive controls and orthographic eagle’s eye view of your spaceship.

The game is fast-paced and offers unique gameplay experience with endless challenges. The graphics are stunning with vivid colors and a splendid soundtrack. The game also offers Google Play games services achievements and global leaderboards to compete with other players worldwide.

Another exciting feature of the game is dozens of power-ups that you can unlock to boost your flight. Each power-up brings new powers to your spaceship, providing a whole new gameplay experience while defending your crystals.

Overall, Crystal Keeper is an addictive game that offers hours of entertainment, and its unique gameplay and stunning graphics make it stand out from other arcade shooter games.