I would think Diablo II LOD is my most played game. I have been playing for about 2 years now, and still playing. Lately I've been using a character mod, and for 5000 gold for each job, I'm moving magical properties to the equipment I have. Plus allowing level-up skill points to be used for any character class skill. I'll see if I can't get my necromancer (which is all seem to I play) past Baal on nightmare mode this time.
Other games I played a whole lot of was Duke Nukem 3D (with the Build level editor), and a DOS game called Empire.
Other games I played a whole lot of was Duke Nukem 3D (with the Build level editor), and a DOS game called Empire.