I've been on the internet for a really long time and in that time I came across some very cool things, yes those things are Homestuck related and I will link them right here.
The first is The Overseer Project https://v2.overseerreboot.xyz which is a text based version of SBURB which is multiplayer and it works quite well, think Dungeons and Dragons but Homestuck.
The second is The Genesis Project https://store.steampowered.com/app/1610900/The_Genesis_Project/ which is a 2D/3D version of SBURB that is also multiplayer, it's not completely finished yet but it is playable and has a lot of content.
Now also because I can I'm gonna drop something below:
If you want Pesterchum you can grab it here https://github.com/Dpeta/pesterchum-alt-servers