itch.io

There aren't many 3.0 users left, one or two here and there.  Someone (I forget who) was writing a space-themed platformer with version 3 last year.  To answer your question, not that I know of as version 4.7 is a significant improvement on 3.0 with many improvements so all the addresses are different.  If memory serves, 3.4 was the latest version that would work with 3.0 games.  The multi-platform Windows editor MPAGD can extract data from versions 4.0 to 4.7 but nothing earlier as things stand.  I'll have to see if I can find the source for version 3 - think there may be a backup copy somewhere - then I can figure out if MPAGD could import those games.  Meanwhile, you could try asking Allan Turvey on the AGDX Facebook group (Highrise on the AGD forums) if he has any suggestions as he's done some work on extracting data and I'd be happy to assist him if required.  Let me know how you get on