@ami_angelwings The Ar tonelico/Ar nosurge series springs to mind. Wow the Atelier series is popular, but most people don't even know those games exist. They recently got a "DX" remake on modern consoles and even though it's probably a zero effort thing, the publisher can't be bothered to release them in English because they assume no one would buy them.

Also, the game has plenty of flaws, but I've always wished that Empyrion had more appreciation. It started around the same time as No Man's Sky and IMO does everything NMS does better, but it never had the marketing or budget, so has always remained essentially indie (or whatever comes just above that.) Most of the flaws and lack of polish would have improved a whole lot more if they'd had the popularity and budget of NMS...