Feel free to use my free retro games. You can find and download them from my homepage : www.riimukivi.net
I tested it with VICE 3.1 (mac) and it worked ok.
Here few tips:
Configure extra mem (32k or more): Settings -> Resource Inspector.. -> Machine -> RAM -> check all blocks 0-5 -> restart if needed -> VIC-20 Screen shows "28159 bytes free"
Attach D64 disk image : File -> Attach Disk Image -> Unit #8 -> (and select .D64 file)
Load the game : type = LOAD "*",8,1 and type = RUN