Which indies did you discover and would love more people to know about? I’ll start: The Pale Beyond. Not sure if it’s a hidden gem tbh, but it’s such a good story rich game. I laughed, I cried and felt the characters struggles. If you like story rich games/ choices matter, check it out.
It’s old enough that I can’t attest to how hidden it was/is, but Superbrothers: Sword and Sworcery is likely the greatest 3 hours I’ve spent in a single videogame. It’s chock-full of confidence and style and atmosphere. The story is nothing unique but the presentation is everything. Pixellated graphics contrasted with vivid sound design and a glorious soundtrack. I love everything about it.