This was back in 2013. At that point I have been developing games (as a hobby and then professionally) for 13 years. During my free time in high school and college, that's basically all I did. And then right out of college I got a job in the game industry. I also developed and published my own game. In 2011 I moved to the bay area, joined a game startup, and it was acquired. (By Zynga, so not that exciting, but overall, I'd say things were going well.)
Around that time, I realized that there was no way making games would help with x-risk. So I left the industry. This involved letting go of the deepest passion and the most developed skill I've had at the time. It involved changing which circles I networked in. And it included abandoning all the knowledge I accumulated of the programming libraries and framework, game design, game lore, and all the half-baked game ideas I had and was hoping to develop some day.
I still stand by that decision. But I've also found a way to incorporate a bit of that old self into my present life. For example, sometimes I design a board game. Or write down and explore game ideas until I can "see" how it would be developed. Or dream about having enough money to just hire an entire studio and have them develop it.