One such program is Everett Kaser Software's Hero Mesh puzzle game engine. I have actually started writing Free Hero Mesh for this purpose, though (but it is in

One such program is Everett Kaser Software's Hero Mesh puzzle game engine. I have actually started writing Free Hero Mesh for this purpose, though (but it is incomplete). Another is a good alternative to the Microsoft BASIC compiler for DOS. Although there are other BASIC compilers, they miss many things and don't work with real mode.