Cosmic Defender 2.1 is a fast-paced, retro-styled vertical arcade shooter (Shmup) set against a cyberpunk sci-fi backdrop. Pilot the powerful Cosmic Defender starship to fend off a galaxy-wide invasion. Battle through multiple levels, destroying formations of diverse enemy types - from Interceptors to Juggernauts - that descend upon you. Clear the enemy ranks to engage and defeat a unique, powerful Boss at the end of each protocol level. Survive all challenges to face the ultimate Final Boss encounter. Earn high scores and track your lifetime statistics as you defend the cosmos. Cosmic Defender 2.1, Shmup, Vertical Shooter, Retro Arcade, Cyberpunk, Sci-Fi, Space Shooter, 1 Player, Action Game, 2025 games, Space Combat, Arcade Game, Mobile Game, Keyboard Controls, Touch Controls, High Score, Boss Battle