I'm not aware of there being any official discord server for my colony and I've seen no unofficial ones other than ones set up for federations.
I set this one up a few months ago and we have a few members chatting with and helping one another.
Feel free to join using this link: https://discord.gg/dvJSKBB
Find User here you can look for a user
General Discord Server for My Colony (the game, not one of mine)
#2 2019-12-01 17:52:50
Typo on the title.
Also, I believe My Colony needs an official Discord server, but for that it would need to be owned/recognised by Bast and he would have to be somewhat active on it.
Creator of Coloniae