You know what? I fucked with this, my first instinct was RE4 clone but it came out only a couple of months after RE4 so either it was the fastest AAA game development in history or it's just coincidental thinking. It's very derivative of older RE games, other shooters and a few other things, but I can also see places where this could have been surprisingly influential, like RE: Revalations just being this exact same game (but better) and a lot of cutscenes and some plot beats being directly replicated in Dead Space a few years later.

It's not a must-play but I was plesantly surprised, and coming in at about 3-4 hours to play it squeezes a lot into a small package.