Jason Tocci's 24XX SRD is probably the most fun rules-light frameworks around and has led to a proliferation of superb games that can be played with practically zero prep. For my sins, I released my own interpretation of the format (obviously with a Pariah spin) which is free to download here:
https://aloneinthelabyrinth.blogspot.com/2022/06/pariah-xx.html
Combining my new-found obsession with the format with my ongoing 3-year fixation on Rowan, Rook and Decard's Spire: The City Must Fall, I thought I'd produce a 24XX interpretation of the game as a design exercise, Flèche (/fleɪʃ,flɛʃ/):
There's also a back page: