I am an avid worldbuilder and also an amateur, hobbyist TTRPG designer! ArcadiadX is my TTRPG system, and my worlds here on World Anvil will one day be settings for that system :D
That's about it, see you around!
Halo (the whole world of Halo, goddamnit!) and Titanfall 2 (also the whole world; it's amazing...).