I never had Action!, but I did try Deep Blue C for the Atari 800. One issue was lack of brackets in the character set.. I think it used $( and $) instead.
https://www.atariarchives.org/APX/showdocs.php?cat=20166
There were some other weird 8-bit programming languages: PLM and MPL. These are PL/I clones for 8080 and 6800. I used MPL long ago and wrote an article about it:
https://github.com/jhallen/exorsim/tree/master/mpl
PLM was much more popular and better: