イモータルズマブラヴ オルタネイティヴ is an action RPG with a hack and slash element that takes place in a world where humanity battles against the extraterrestrial species called "BETA." In this game, players can enjoy a completely original story set in the Muv-Luv universe. The game features popular characters from the Muv-Luv series and allows players to form their own unit and engage in epic battles.

The gameplay revolves around hack and slash mechanics, where players can acquire various weapons by defeating enemies. Equipping these weapons on tactical aircrafts grants additional effects and attacks called extended weapons. The guards and tactical aircrafts each have their own unique skills, allowing players to unleash devastating attacks against the "BETA." The game offers a wide range of formations and attack patterns, providing players with a flashy and exhilarating battle experience.

Immerse yourself in the world of イモータルズマブラヴ オルタネイティヴ and join the fight against the alien invaders. The game is available for free, so you can jump in and experience the thrilling battles right away.