
Not everywhere is connected, so if you want to move sectors about, or join things, or split things apart feel free to, not to mention your own music, textures, even decorate if you wish!
http://www.filedropper.com/unknown1_1

It's Doom2 format for now so if you wanna make it in Boom, Zdoom, UDMF w/e- that's cool!
Have fun!