All the games in this thread are free for about a day.
I'll edit in a list of my favorite actually free games sometime.
Generally, about once every month or three, I'll go on an Itch spree and play a dozen or so recent Itch games.
There's a lot of slop, but some of the most creative ideas are coming out of the indie and homebrew scene.
And some people, like Daniel Linssen, consistently put out great little games.