ZDoom is a family of enhanced ports of the Doom engine for running on modern operating systems. It runs on Windows, Linux, and OS X, and adds new features not found in the games as originally published by id Software.




idTech4A++ is described as 'IdTech engine games For Android. An idTech games runtime libraries collection on Android' and is a Game Emulator in the gaming software category. There are three alternatives to idTech4A++ for a variety of platforms, including Mac, Windows, Linux, BSD and Haiku apps. The best idTech4A++ alternative is GZDoom, which is both free and Open Source. Other great apps like idTech4A++ are Chocolate Doom and LZDoom.
ZDoom is a family of enhanced ports of the Doom engine for running on modern operating systems. It runs on Windows, Linux, and OS X, and adds new features not found in the games as originally published by id Software.




1998 saw the public release of the Doom source code by its original authors, id Software. Since then, a large number of Doom "source ports" have been created by programmers, who have extended the code, adding new features and removing some of the limitations of DOS...




LZDoom is based on an older version of GZDoom. It does not provide all features currently supported by GZDoom but in turn is capable of running the hardware renderer on older hardware which does not support modern OpenGL features.
