This is a VAST(ish) collection of 92 short games covering a wide variety of genres published by Far Horizons collective. Themes range from silly to horrific, and rules from very light to complex.

https://bundleofholding.com/presents/FarHorizons
I've had a quick look at a couple of the volumes and there's some good stuff in there, and a lot of fun ideas. Presentation is pretty good, and at about twenty-two cents per game you aren't risking a lot if there are some you dislike. Having said that, if you're already committed to other systems there's no need to dive head-first into this offer, it'll take a long time to check them all out and you might want to spend time playing games instead!