I worked in the game industry for years and left it, I've made games before.
The engine I'm making is for a very specific need (initially made to help someone else make a specific game), a few people have been using it to make their games, but it's a pretty niche thing for narrative games - https://get-narrat.com/
I'm making it for fun, but I don't expect something like that to ever make money, for that I'd need some big companies to decide to sponsor it and pay me, which is super unlikely.
The engine I'm making is for a very specific need (initially made to help someone else make a specific game), a few people have been using it to make their games, but it's a pretty niche thing for narrative games - https://get-narrat.com/
I'm making it for fun, but I don't expect something like that to ever make money, for that I'd need some big companies to decide to sponsor it and pay me, which is super unlikely.