BRAZILIAN DRUG DEALER 3: I OPENED A PORTAL TO HELL IN THE FAVELA TRYING TO REVIVE MIT AIA I NEED TO CLOSE IT (link)

If you love old early 3d boomer shooters, deep-fried memes, and brazil, you will thoroughly enjoy this one. Looks like a string of trippy community maps some rando would patch together, but it's actually well-made and executes the shitposting perfectly. It runs on quakespasm (source port for quake), and is pretty much a total conversion mod for quake.

Probably not the type of game you were expecting, but it's really short and there are very few things like it. It's cheap and can run on basically anything. Would recommend