i got 46.
the criteria I used (which i won’t hold anyone else to, use your own criteria) was whether I played it for more than 2 hours (steam’s cutoff for returns, or at least it was as of the last time i returned a steam game). like I’ve technically played tekken and thps, but only when visiting other people’s houses as a kid, so can I really say I played them? at the same time there are games like yakuza 0 where I never got around to beating it because life stuff came up and I lost interest by the time i got free time again, but I put in like 30 hours so should I say I never played it?
I got 52. This is the consequence of me being one of those "games are better than ever! Just stick to indies^TM^" g*mers before quitting. That and it's missing a lot of arcade games like KOF (15+ games), Metal Slug, Mahvel, Pacman, DDR, and so on.