(The story for) Very Cool Gun (VCG): A Rougelike Shooter with Only One Gun

VCG is about a team of rebels repeatedly sending their premiere fighter, Yuko Matsumoto, into the depths of the ever-changing planet Sheol armed with the "Very Cool Gun," an ancient alien superweapon that can take on a nearly endless amount of forms, with the hope of destroying it permanently by casting it into Sheol's core before the mysterious race of genocidal tyrants known as the Out can get their hands on it. Yuko will fail repeatedly, but can be brought back to the encampment set up on the surface of the planet via The Grandfather Glove, a device that locally rewinds her back in time without affecting her memories or the world around her, though due to Sheol's strange internal structure the caves she goes back to are different every time she ventures into them. The game's story develops during these trips back to the base, known only as Home, where in between the runs to the core Yuko can socialize with her crewmates and make friends, enemies, and even lovers.

THIS IS NOT A COHESIVE NARRATIVE LIKE A BOOK OR SHORT STORY. Rather, this is a document intended to describe and establish the story to a video game that we had to write in dramatic writing. It includes things like general world-building, character establishment, etc.