I’m kind of interpreting this as games I’ve spent a ton of time on and didn’t care to play anything else.
as a Series, Final Fantasy wins. I’ve played Final Fantasy games, up to 10, probably more than anything else, possibly more than Diablo 2, and Phantasy Star Online. The PlayStation period when FF7 came out, I was constantly trying other RPG’s and comparing them to FF7.
PlayStation 2: Grand Theft Auto 3 and Vice City took over. While I liked FF10, it just couldn’t hold up at this point. The amount of things you could do at the time was mind blowing. And even your friends who used to think gaming was nerdy were on board for these two games. Everyone had it.
Dreamcast: all about Phantasy Star Online
PC: This was a Diablo 2 Machine, the action RPG for my friends and me.
I took a bit of a gaming hiatus for years, and slowly crawled back eventually getting a PS4. I was late to the train for the souls series, but it slowly consumed me. Dark Souls in particular. I’ve spent enough time with this series to only get the urge maybe once a year to play again, but not in the way I used to. Usually Dark Souls, and just up to Ornstein and Smough.
Waiting for my next big fix, just playing mostly old RPGs until then.
Honorable mentions:
Nier Automata
Team Fortress 2
BOTW
Diablo 1
Legend of Dragoon
FTL (faster than light)
Sim City 3000
The Sims 2
Monster Hunter World
Red Alert 2