I half-built a complicated Vampire Survivors clone. It was fun to play. There were around five VS clones coming out a week by the time I was done with the low-level systems, so I wasn’t willing to put the year behind actually publishing and supporting the game.
I have moved on to a new game. My team wants me to be quiet about details, so I have not been talking it up…. yet. I will be loud about it in the future. It’s not playable yet, but soon.