We have a publicly accessible Discord server. This contains some general chat channels as well as a #survival channel linked up to the in-game Survival chat. When you chat from Discord, all messages have the prefix (Discord) applied before they are relayed to in-game chat.
This chat is also linked up to our IRC channel which is no longer being maintained. So you may occasionally see people with (IRC) before their names when they talk in chat.
If you're in-game execute the command
/discord and click the link,
or if you're already in Discord simply connect to http://discord.gg/PcrMXew
/discord linkin-game to receive a numerical code