I have become rather obsessed with doing things chronologically, starting with playing games chronologically in 2010; when it looked like there would never be any good PC games made again, and Kickstarter was still a couple of years away.
Now I've reached late 1996, so I've made decent progress (unlike CRPG Addict I don't waste time on games that are obviously crap) and played lots of great games I would probably never have tried if I stuck to my old habits (mostly replaying and modding my favourite games).
I also need to learn more about the influences and history of the games I play. There's quite a few games influence by Lovecraft, so I read most of his stuff, which led me again to read the writers that influenced HPL, like Edgar Allan Poe, Arthur Machen and Lord Dunsany, which again led to me having to read Weird Fiction, Swords&Sorcery, Fantasy and SF chronologically (currently reached 1942).
But sometimes I jump ahead. Before playing Terra Nova: Strike Force Centauri I have to read Starship Troopers and The Forever War, which are the main influences of the game.
If a game is turn based and have evenly sized squares I must make my own map.
I always try to complete games using as little in game time as possible, if there is time keeping in the game.
Which is why I really like it when games reward you for it by getting a better score, like the M&M and HoMM games.