Valve has been publishing them publicly for years, it’s just in the developer documentation rather than on Steam.
Comment on Valve reveal all the Steam events scheduled for 2026
osaerisxero@kbin.melroy.org 3 days agoThis is the first time I've seen an official list. Devs/press have been quitely leaking all the upcoming events for a few years anyway, so maybe valve just said to hell with it here's the schedule this year.
fartsparkles@lemmy.world 3 days ago
GammaGames@beehaw.org 3 days ago
They’ve been sharing them publicly since at least 2022, though they didn’t really start doing the big compilation updates until last year
You can see them all in their community! store.steampowered.com/news/group/4145017