Short version: 41%
Boring, unimaginative, repetitive, and tedious, Doorways: The Underworld does everything to scare away the few fans of the series.
Whereas the first two chapters of the Doorways series consisted of linear platforming sections with death trap puzzles, the theme in Chapter 3: The Underworld changed significantly.
This chapter is divided into four segments: a hospital level and three underground mazes. Although the hospital segment is excellent, it is by far the shortest part, and doesn’t make up for the huge shortcomings presented everywhere else: the whole game is nothing but running constantly from one end of a maze (including an infuriatingly tedious timed rat maze) to the other, while being chased by some invulnerable monster. It’s like Amnesia done wrong, really wrong.
The tone is different as well. The protagonist constantly yells and whines, which is in stark contrast with the previous chapters. The voice acting is still enjoyable, but even that cannot help much with the new “dialogue”.
If you liked the first game, wait until Chapter 4 is released, maybe it will redeem the series.