There is a driver somewhere that lets you mount ADFs as a virtual disk in
Workbench - I've never tried it, but I doubt it would be any use with most
floppy-based games, they mostly use non-dos formats, you wouldn't be able to
read or boot from them.
You could use WHDLoad ( http://www.yqcomputer.com/
) to install supported software
to your hard disk, apparently that works pretty well. Other than that,
floppies are probably your best bet.