"Common Fortress" is the site for various TTRPG projects and products. Essentially "distributable stuff". The name is derived from the blog "Twierdza Powszechna" (mostly Polish, with some English stuff).
It's me, Michał Przygodzki (call me Mansfeld), an TTRPG enthusiast, who blogs about TTRPG theory and gameplay since 2011. I do love playing non-traditional TTRPGs. I live in Poland (yet).
My first published TTPRG came out in October 2021 and until then, I've published several microgames, mostly GM-less which explores animal themes. Alpacas and other animals.