Welcome to my first Doom Map "Unholy Fortress"
It's not a huge map but I had fun making it and hope everyone can enjoy it.
Feel free to use freelook and jumping, and the wad was tested in GZDoom V.4.2.1
There are 6 secrets total, the map takes the slot of Map 01 in Doom II, and for those who are curious the music for Map 01 was replaced by the song "Molecular Suicide" by the band "Vanished"
Here's the download link