If you want a fun and easy way to contribute to OSM I recommend StreetComplete. You get a bunch of game-like quest icons for things like "what is the surface of this path?", and "does this road have a cycle path?", then you walk around and fill them in.
Very satisfying and feels like you're doing something actually useful. Also nudges you to visit parts of your neighborhood you might never have been to before.
This isn't a real counterexample, but an interesting case is Bobby McFerrin, who wrote "Don't Worry, Be Happy". He avoided listening to singers for 1-2 years in order to develop his own voice/sound:
"First was the vision, then the technique of working it out. I wanted to find my own way of singing by knowing myself. I knew that if I started listening to other singers, it would take me years to develop. So I shut myself off from other singers for along time."
But are these game devs designing the gameplay loop? Or are they working on backend, like the engine?
I could imagine a (solo) game dev not self-describe as a gamer, but they must have some intuition about what makes (video/board) games fun and engaging.
I can't imagine you can obtain that without ever playing games yourself?
Kex = biscuit, from "cakes"
Keps = hat, from "caps"
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