Protean IDE
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
Protean IDE (Integrated Development Environment) is a highly-functional program written by Rob Hutchinson to assist Blitz Basic programmers. It has full functionality with BlitzPlus, Blitz2D and Blitz3D. It has limited support for BlitzMax.
Although Protean was originally commercial-software, Rob Hutchinson released it under the Creative Commons Licence due to lack of development updates. Both binary release and the source code are publicly released for download, with a final word from Rob Hutchinson:
"A massive thank you to EVERYONE who bought Protean when it was commercial software, it would never have survived as long as it did without your support! Thanks to everyone on the Blitz Dev team for making an excellent product, and lets hope someone can produce something awesome from the source! I look forward to seeing what people come up with."