Not sure if I'm able to put there this thread but I would like to collect as most as it is possible - all original Boulder Dash versions on tape and disk. Currently I own only one, Boulder Dash IV Construction Kit from Hi-Tec software. 10 years ago I had borrowed the same game but released by different company.
So if anyone has a working BD originals for C64, just contact me
Boulder Dash XII (1999) [own reverse engineering of BDI]
Boulder Dash 2000 (2000)
Fantasy Boulder Dash I (2001)
Zulder Dash (2009)
Power Dash (2012)