I'd be playing games all day, sometimes one in particular, mostly i'm moving around a lot. I decided to quit this year because I was at the point of sitting there for hours opening and closing games after 10 mins of gametime.
Roguelike, strategy and some grand strategy. My most played stuff would be Just Cause 2, Deus Ex HR, Prison Architect, Stellaris and The Binding of Isaac. Other stuff would be Don't Starve, Postal 2, GTA Vice City, FTL, some Batman games, Fallout NV. Just a mix of really random stuff. The worst games that i've had to quit were The Sims, Saints Row Series, TF2, CSGO, COD and Governer of Poker 3. I've rarely bought any new games, I own some but i've hardly played them in comparison to others. The newest game I finished was Deus Ex MD though, I was midway through the second playthrough. I really go all in on singleplayer games. I've got no idea how i've gone that long playing the same games everyday, I guess that's just addiction. Playing it to feel normal. The gambling aspects of multiplayer really get to me too.
I've never played the more common games I see around here and in gaming communities (WoW, Fortnite, LoL, Rocket League, Destiny 2?, Overwatch, Pubg) ect. I can't run that much stuff anyway and i've never wanted to waste money on games (I always wasted it on drugs instead...). I've also never kept up with gaming news. My drug habit probably played a big role in being a gaming addict now that I think about it.
To top that all off, I had plenty of friends in high school and nobody knew I was a gamer. Though I cut all my friends off when I stopped using drugs.