I think the first PC game I ever played and really got in to was Myst. I had always played consoles before that.
But Myst changed my gaming world.
And it's such a simple game. Walk around and look at cool stuff and solve puzzles. But I thought it was boss and after that I slowly drifted away from consoles and into the land of PC gaming.
I grew up gaming, mostly on console because that's what we had. I was raised by my mom, and we were pretty poor since she only has disability income. It was Mom who picked up gaming first, and of course, I wanted to try, so I had my own games from around 3-onward. She still loves games, though these days she mostly plays on her iPad. My mom and i shared games together for quite some time. We used to go to game stores or for rentals together, and often play together. I did play with other kids, including my cousins, and aunts (my mom's youngest sister is 8 years older than me), but my mom and I had a lot of favorites.
The first PC game I remember truly getting super into was The Longest Journey. If anyone hasn't played The Longest Journey and the Dreamfall games, go buy and play them. I have to continue Dreamfall Chapters (I was a Kickstarter backer) but I think I'm just waiting for it to be complete before I do.