Nice game! I enjoyed a lot playing it, good job!
It reminded me a lot about Doom, one of my fauvorite games from all time!
In fact the game title is drawn in a Doom style tittle letters right?
Thanks for kind words. The very first idea was to make a parody on several levels of Doom and Doom 2, but eventually I realized that it's a little bit too much for me. And yes, logo is a parody on Doom logo.