The Doomsday Engine is another extremely refined attempt to bring the classic Doom and games based on the same engine back to a world where you've forgotten what DOS was like. Not everyone wants to combine with running old hits under e.g. Windows, so a thriving fan scene comes up against them, correcting technology errors from the original and the entire graphic design.

Preconfiguration is limited here to indicating different WAD files with data of individual games compatible with the program plus possible add-ons that are to be loaded automatically. Among other things, various 3D models are supported, replacing two-dimensional objects and enemies. When you start playing the right game, you will immediately notice a much higher resolution of the image, great lighting effects, and full freedom in looking around.

But the Doomsday Engine can do much more. In many aspects, this solution is close to today's gaming customers, such as Steam and Origin. The player can at any time call up a very clearly designed graphic overlay, the basics of which are laid out by a special short tutorial shown at the beginning of the tutorial.

You get quick access to the list of notifications (errors occur here, for example), the taskbar from the application menu and settings, including graphical ones, with displaying the image on 3D screens, and even in VR goggles. A number of additional settings can also be found in the options of the game itself, and to all of this you can easily start playing online with other retro lovers. In this version you don't need DOSBox to have fun, because everything works, among others, under Windows.

However, it is required to add files with the WAD extension, which contain data of Doom games, to the root directory of GZDoom and select them from the list at the start. Files from the free shareware hit edition, as well as Heretic or Hexen demo editing on the same engine, plus naturally different fan maps, are supported.