Chocolate Doom is described as '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' and is a first-person shooter. There are more than 10 alternatives to Chocolate Doom for a variety of platforms, including Windows, Linux, Mac, Xbox and Steam apps. The best Chocolate Doom alternative is Doom. It's not free, so if you're looking for a free alternative, you could try idTech4A++ or GZDoom. Other great apps like Chocolate Doom are Prodeus, Shadow Warrior (Reboot), Freedoom and Anarch.