Surely one of the best indie games I tested, I had a great time :). Graphics are great, IU and music are on point. Weapons and upgrade systems are well made. Gameplay is really fun and the pace of it's really good.
At first the granade mechanic as only way to finish enemies and get additional ammo and a bit wobbly camera while moving was weird to me but I got used to it and I am not the typical doom like games player so It's probably because of that.
One thing I felt annoyed by is that I couldn't tell at first which enemies are weak to finish by sword, some indicator would help unless it was abvious and I didn't noticed. The plot also was ok, not bad but nothing special.
I also wonder if you had more weapons will you have some way to reorganize or change shortcuts to them?