we're a loose association of like-minded tilde communities. if you're interested in learning about *nix (linux, unix, bsd, etc) come check out our member tildes and sign up!
member status in the tildeverse mainly involves some level of engagement or presence on irc; all other systems are independent.
there's also a wiki that documents a bunch of things in and outside the tildeverse. anyone with an account on a recognized tilde can make an account, so feel free to help out once in a while.
here are some of the things that we provide for tilde users and some projects that we're working on
A roguelike adventure through dungeons filled with dangerous monsters in a quest to find the mystifyingly fabulous Orb of Zot. - https://crawl.tildeverse.org