Well.. I'll fully admit that my own program is not yet ready for a meaningful BETA as of yet. I can tell you this, though. It's currently called XantyX and is a mixture of ZZT, Kroz, and Metroid.. I suppose! Metroid.. in the fact that it's in a smooth side-scrolling format. Metroid's just the first game that came to my mind!
When a BETA is ready, it will be uploaded with a level editor.
Also, I have a few idea sketches for an RPG... including how to perform the collision detection. This will be more like FF9 than Dragon Warrior 1... with pre-rendered backgrounds.
I also have a rough space fighter written for DX7 "similar to Star Control"... I will most likely clean it up and dissect it for some of the tutorials on this site. It'll still be able to be downloaded.... as well as the Moray MDL's I used to render the sprites.