Stellar Guardian – Cosmic Defense Force is a fast-paced space shooter where you command powerful ships, unlock upgrades, and defend the galaxy across challenging missions and game modes. to fix the lag you need to keep the PC on a full screen, while on other devices it runs smoothly stellar guardian, space shooter, cosmic defense, 2D shooter, arcade game, kids game, no blood, galaxy defense, space combat, ship upgrades, fast-paced, free game, mobile game, desktop game, shield, slow motion, arcade, gameplay, galaxy, adventure, futuristic