Over the past few years I've been converting inform\zcode text adventure games into C128 format on D81 images. There are over 500 games in total. A few that couldn't be converted to C128 format, because of RAM limitations, were created for the Plus4 as the Plus4 had a little bit more RAM to use in some configurations.  All the C128 games have been tested in 40 and 80 Column modes and were configured to allow access to previous commands given in the game (command history on).
 I've put them up on Google Drive here and you are welcome to them.
drive.google.com/file/d/1PFgbKpEFsd-yCa_mDcTwycbcEObdknr8/view?usp=sharing
Message me if you want a particular game for C64 or a different disk type.
 
Enjoy!