Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
How about creating the two remaining versions of Greek backgammon? I refer to Plakoto and Fevga, as described at http://www.bkgm.com/rgb/rgb.cgi?view+344