: Purchase DOOM + DOOM II on Steam . You can access the original DOS versions via the "Beta Participation" property option or by looking in the game's installation folder for the DOOM2.WAD file.
: GOG provides a DRM-free version that includes the original DOS files, often pre-configured to run on modern Windows via DOSBox. Download Doom 2 PC Game 1994
: Similar to Steam, these platforms sell the enhanced bundle which includes the legacy content. : Purchase DOOM + DOOM II on Steam