Thanks, awesome! Interesting how the store partitions them into different buckets.
After already scraping category-names of ~1200 games from store.steampowered.com/api/appdetails, your tips yielded three i didn't already know. great!
Those games, when querying the client (app_info_print), yield category id's undiscoverable via the store (api, search page and game pages): 12,33,45,46. (the latter two match 35% of the games, while the first tow match ~1% and ~5% respectively. at least to me there is no obvious pattern...)
Additionally i'm missing names of categories 3-5,11,26,34, plus anything above 53, if that exists. (also totally unknown to the store)
Also tried a quick grep to find category-names lying around in steam directories as plaintext. But alas no such luck 🥲
Funny! Did a quick check: out of ~1200 games, 2 match both, 12% match 30, zero match just 51, the rest don't support steam workshop. No clue as to why there are two categories though.
And there goes my illusion of valve being great at doing things... 😉 Well i have a guess: whats advertised vs whats actually supported 😎