Thanks - I'll have a look over the weekend and see if I can find a reliable one - lots of dodgy crack files out there that I don't trust! At least with a torrent you (usually) get to have a look at the files included and can probably just take the crack files, then use them with the trials.
I am a member on the Team OS site. Here I did find find Archicad 21 Build 5010 dated Dec 18, 2017. I did download the crack folder only but you must find the setup files by your self (Google). The crack is file replacement so it should be safe. Password as useal. For info see the readme file. You must probaly also run the bat files included. I do not know anything about this software and do not use it. So this kind of sideshow project for me