hey, Blendman.
a very generous offer as the MANY hours of work you've put into these projects is apparent.
i've moved this to Chat (from Showcase) as it seems to be a slightly premature announcement potentially hinging on "protecting" it which, IMHO, is impossible.
my first thought is to showcase the work as you've done and allow interested parties to contact you and "formally" agree to any conditions that you may have while offering their means to meet them. after that, it would come down to trust.
alas, no one
can fully protect anything that's shared in any form or your concerns, well, wouldn't
be concerns
so, i see 2 (other) options: 1) post it on github or the like and set it free to find its place amongst the stars, or 2) somehow interview interested parties which, to show sincerity, could result in paying for it. bots aren't known for paying for what the consume.
add: i don't know how Towerbots might have evolved since it became part of the Games Pack and i've no details re: your agreement with TGC but, at least for that title, you may have more to consider. maybe it's best to talk to TGC on "all of it" and see if they might have a solution that you find favorable?
either way, it's good to see it all in the sunlight