Hi, I gave it a go, here are my impressions:
Pros:
- The monsters and what they shoot at you are genuinely terrifying.
- The lighting and the grey corridors give a good spooky effect.
Cons:
- Doesn't seem to be designed for 64x64, low res gets in the way
- Little gameplay things to fix, for example you run out of ammo quite early and then you're doomed.
TL;DR: very good atmosphere, with hi res and some fixes it could be good.