I recall some polish titles.

The first thing I remember is Kryształy Czasu (crystals of time). I remember rules were being published in polish magazine about tabletop games in the 90s. Never played it but from what I seen it had super overcomplicated rules, shit like 10 kinds of resistances, endless tables etc. World was a fantasy setting with 6 trillion races, bunch of everything and more mixed together. Browsing those magazines I never actually found basic rules required to play, just more and more expansions, races, rules, tables how to roll a random castle, temple, whatever. Idk maybe I missed one issue or something where they explained it. Basically from what I've seen when people mention this game (which they do rarely) they make fun of it and it's author.

The other one is Neuroshima. It's basically fallout rpg. Post-apocalyptic america, big mean machines on the north, deadly jungle on the south and in between some goons pretending to be functioning countries and a lot of bandits, mutants and anarchy. Also everyone have some kind of illness and one of the main concern of your character will be looking around wasteland for specific medicines that will let you sustain your life. I didn't play it much, but from my memory it had rather strange mechanics although overall I had good time playing it.
I see the developers of this game are having some success selling it. Not only there's rpg game, but I also have a board game, I've seen some mobile shit, books and tabletop with figurines as well. They're having some smoll successes outside of my country as well.