At least two of these are available for free download (as in "not pirated"): http://thinking-forth.sourceforge.net/ http://thinking-forth.sourceforge.net/ htt

At least two of these are available for free download (as in "not pirated"): http://thinking-forth.sourceforge.net/ http://thinking-forth.sourceforge.net/ http://www.projectoberon.com/ http://www.projectoberon.com/