I run a GURPS fantasy campaign since 2008. I was one of the creators of the world we play in, Erinel, published in Czech. I have also authored a RPG about magi high on magic; my other tries for gamedesign and worldbuilding stopped halfway or were not published. Small, experimental indies are my other favorite RPGs after GURPS. I have also played Czech RPGs Dračí Doupě and Dračí Doupě Plus for some years.