Cool! Quickcast fireball is all one needs in this life 😎
The spellcasting phone stuff sounds pretty awesome in theory, but I didn't feel like pairing my phone and I'm a little skeptical it fits the quick pacing of a doom-like.
I opened the door with the iron key on the 3rd (4th?) floor, and there was an open elevator behind it but I couldn't interact with it. Did I reach the end, or is that a bug?
Anyway, great work!