Apocalyptic Scientist

A scientist who is half an android in an apocalyptic world that had been taken in by a bunker vault and is unable to remember even his name under vault identification "Unknown" He works as a scientist researching more about this apocalyptic world and all of its creatures when strange things happen in the reactor room, it seems as though a landscape comes through and what follows is a portal is sorts needing to understand what is going on unknown finds himself going through the portal to see a hell like landscape simmilar to the one pouring into the reactor room, this place has new creatures and entities and conditions that would not be able to match anywhere on earth, setting up a lab outpost out here he conducted research on the many entities and flora there learning about this dimention of sorts they had dubbed "Ghenna" Many experiences and hours of research has led unknown to discover allies in the vault. Will unknown and the party be able to bring the world that is now in ruins back to living shape or has the world become to far to save?