>Crispy Doom is a source port that aims to provide a faithful Doom gaming experience while also featuring some user-requested improvements and enhancements. It is forked off of Chocolate Doom to take advantage of its free and open-source code base, portability, accuracy and compatibility with Vanilla Doom. > >Its core features are: Enhanced 640x400 display resolution, with the original 320x200 resolution still available in the "High Resolution Rendering: Off" mode. Widescreen rendering for using all the available horizontal space of screens with aspect ratios up to 24:9. Uncapped rendering framerate with interpolation and optional vertical synchronization (VSync) with the screen refresh rate. Intermediate gamma correction levels (0.5, 1.5, 2.5 and 3.5). Removal of all static engine limits, or at least raising of the less crucial ones. Full support for the "Doom Classic" WADs shipped with the "Doom 3: BFG Edition", especially the "No Rest For The Living" episode shipped in the NERVE.WAD file. Support for all versions of John Romero's Episode 5: Sigil for Ultimate Doom.