Tom McGrenery (my charming co-host on Fear of a Black Dragon) has put together a free version of Malandros, his (definitely, officially not PbtA) game about Rio de Janeiro at the end of the 19th century. It’s a great game that has been featured in Codex, and was nominated for an Indie Groundbreaker. Tom is also running it for Gauntlet Con.
Check it out!
https://www.drivethrurpg.com/product/221602/Malandros-Free-Edition