Deus Vult

Deus Vult is a four-level PWAD for limit removing source ports created by Huy "Doom Marine" Pham and released on May 28, 2004. A bonus fifth level contains all previous four combined as a single map. The WAD has a reputation of being extremely hard, in the slaughter style of Hell Revealed, but with more detailed levels. It was a named a runner-up in the first Cacowards. A sequel, Deus Vult II, was released in 2008.