I've been playing a bunch of Antimatter Dimensions
https://ivark.github.io/
I've been enjoying it, (but it's got some very "gamer memes" vibes in the news ticker and achievements, which is a bit weird.)
The thing about it that I find interesting is that it's about "reset, but"
So a lot of the things you build up to are "doing this resets the game entirely and you lose all progress, but with slightly modified starting stats"