Been stumbled on this site http://www.ihsan.biz which offer hundreds of free logic games. Most made in VB and somehow have awkward error handling, however the games are very consistent and excellent for learning.
I can't find few traditional game such as morris there or maybe I missed it (so many games). The only one freeware I found is an old free morris (along its variants) game here: http://www.nine-mens-morris.net/downloads.html. AI is good and made with GTK. I want to share version 0.2 here in addition to the official 0.1 installer. This version has one more morris variant called Sunmill otherwise it looks the same as 0.1.
morris.exe (1.21 Mb)