That's really awesome. I'm very sorry your grandfather is gone, but at least you have all of those great memories! My dad was a film historian, so I think I feel the same way about classic movies like it sounds like you do about games and how they're so much a part of not just me, but my family history. Similarly, there are so many times where I see a movie I hadn't seen before but he would have or just learned a fact about a movie he wouldn't have known and would have loved to have heard that I think about how great it would be to talk to him about it and miss him. He's been gone since 2016 but I still think about him a lot. The hurt gets less but it never goes away.