PowerBasic source code is available. Blitz Basic 2 for Amiga Computers.
Site contains various games, utilities, and examples.
Blitz Basic PC Want to program the next best selling game. You can now with Blitz Basic for the PC, the fastest programming language for beginners and advanced users alike. Dark Basic Official homepage. A place to find free DB code, programs, sites. The entire catalog and some demo programs are available for download.