“Inferno is the third episode in Doom/The Ultimate Doom. All of the levels in this episode are credited to Sandy Petersen, though Tom Hall originally began two of them.
This episode is set in Hell, possibly the inner region of Hell. The episode is apparently named after Inferno, part of Dante Alighieri’s Divine Comedy. “Inferno” also means “hell” in several languages. Most of these levels have a main, center room that can be easily identified, usually circular or square in shape.” –“Inferno,” Doom Wiki, August 9, 2019
Learn more about Doom, id Software’s 1993 first-person shooter video game, here.