Devile II is a megaWAD project by Gustavo Ramos 'Gustavo6046' Rehermann and contributed by the Doomworld community. It is so far a pack of eight maps, of which two are secret, and so many secrets stuffed in the first levels! Skill progressed as I, Gustavo did the WAD progressively. So the latter maps are much better.

Website by me and imXPRS, WAD credits in the text file that comes with the map pack.