Hey yeah I read that too a long time ago, was it about kids though and unending stairs going in every direction, but in the end they’re in an experiment? That book always stuck with me and impacted me a lot.

Hahaha. I can assure you... you do not need to watch the second movie. The third which is a prequel, was pretty good IMO. But it's not necessary to watch.

Nah, whoever made the aecond movie did not understand the first movie

low budget, poorly acted, really interesting premise if you like sci-fi, post apocalyptic scenarios and or "weird" stuff

PS: I did like it

"A group of strangers find themselves trapped in a maze-like prison. It soon becomes clear that each of them possesses the peculiar skills necessary to escape, if they don’t wind up dead first."