chocolate-doom 3.0.1 Doom source port preserving the look, feel, and bugs of vanilla Doom

Chocolate Doom takes a different approach to other source ports. Its aim is to accurately reproduce the experience of playing Vanilla Doom. It is a conservative, historically accurate Doom source port, which is compatible with the thousands of mods and levels that were made before the Doom source code was released. Rather than flashy new graphics, Chocolate Doom's main features are its accurate reproduction of the game as it was played in the 1990s. The project is developed around a carefully-considered philosophy that intentionally restricts which features may be added (and rejects any that affect gameplay).