Darkest Hour Light: this version is available as a mod with only a few changes from HOI2, but nearly all new features are enabled.The number of changed files has been kept as low as possible and all-new options are disabled or set as close as possible to the original settings. Darkest Hour (core game): this version is focused on compatibility with Hearts of Iron 2 Armageddon and all mods available for it.
Moreover, the most important changes to the engines have been added as mods to the core game, with the name Darkest Hour Light and Darkest Hour Full: This has been considered crucial by the development team to make it easy to port community-made modifications from Hearts of Iron II to Darkest Hour. Darkest Hour is, at its core, an evolution of Hearts of Iron II: Armageddon.
