Spear of Destiny (.sod files) and Super Noah's 3D Ark (.n3d files) run well... while Wolfenstein 3D (.wl6 files) doesn't run (the engine crashes and it comes back to the Gmenu2X).
Maybe I'm using a wrong version... in any case, I tested my Wolfenstein 3D with the zerox86 and it runs without problems (the game is a bit slow, but it works correctly)...