Having played the original (the Rebuilt version, at least), I wasn't sure how I'd feel about the remake/reboot story. With how much it adds, though, it was pretty easy to treat this as more-or-less its own thing. That being said, I think the experience is definitely enhanced by playing that original version (Go on, it's freeware and only like an hour long). The way it expands on the ideas of the original isn't always perfect, but I think it hits more than it misses.