Space Station 13 is a paranoia-laden roleplaying game set against the backdrop of a nonsensical, metal death trap masquerading as a space station.
Read more here.
Main website for the /tg/station13 community is http://tgstation13.org Forum is run at http://tgstation13.org/phpBB/ General IRC channel for anything /tg/station13 related is #tgstation13 on irc.rizon.net IRC channel for the development of code is #coderbus on irc.rizon.net NTstation's IRC channel for development of code is #nanobus on irc.rizon.net
There are currently two /tg/station13 servers, both hosted by ScaredOfShadows. Sybil and Badger operate /tg/station13 code..
Download BYOND to play.
Sybil: <byond server=game.tgstation13.org port=1337>byond://game.tgstation13.org:1337</byond> Badger: <byond server=game.tgstation13.org port=2337>byond://game.tgstation13.org:2337</byond>
Check out these alternative maps that come packaged by default in the game.