I look at comfort gaming as more of a nostalgic experience, so when I feel that way I cycle through old PC games from my childhood. Any of the old Sierra games (namely Laura Bow and the Dagger of Amon Ra), They Journeyman Project, and any of the silly old DOS games I used to play (Hugo's House of Horrors, Cosmo's Cosmic Adventures).

I only maaaybe do this once a year or so, though. If I'm having a bad day or am stressed out, I do something other than play games.