After the Wolfenstein source code was released, some fans set to work to improve the engine and made this standalone total conversion. Play Beyond Wolfenstein online!
The first result was Beyond Wolfenstein. The game added a lot of new textures and all levels were fully remodeled. The authors have made a perfect maze, giving you no idea where you are and you err and err again and again. Enemies increased, both in diversity and in number and so it is with weapons. There are more than 4 new weapons including a rocket launcher.