I mostly hail from the GTA RP sphere, but I've been into worldbuilding for several years. I used to be big into the NationStates worldbuilding scene with Adrionis/Subtopia, before I gravitated to GTA RP, where I have my main OC, Vince Torelli (the fiancé of Chloe Hill, another long-tenured OC from the HL2 RP community).
My faction history in the GTA RP community includes The Underground from EclipseRP and the Martorano crime family from GTA: World.
I've also operated a private Discord storytelling sphere with WorldProp (the person who made Chloe Hill) from the Half Life/GTA RP scene, alongside two other friends currently - Andi, from the Star Wars: The Old Republic RP community, and Rob, another cool text RPer who was also in the Half Life scene.
The private Discord is where most of my best RP has come from, summaries of which are available to view on the Chloeverse wiki:
https://chloeverse.fandom.com/