Builders & Sims
Oxygen Not Included Discord servers
Klei Entertainment
Is there an official Oxygen Not Included Discord?
Yes. Klei Entertainment runs its own Discord server for all its games, and it's the official place for Oxygen Not Included. Linked on Klei's Oxygen Not Included page.
Join Klei EntertainmentOfficial servers
Run by the developer or publisher
Klei Entertainment
19.7K online69.2K members
Klei's studio server, with ONI channels next to Don't Starve and more
Fan-run servers
Run by players. Often the best place to find people to play with
Oxygen Not Included
6.21K online20.1K members
The big fan hub for base help, builds, mod talk and colony chat
Oxygen Not Included multiplayer mod
246 online1.15K members
Home of the early-stage, fan-made multiplayer mod: co-op colonies and setup help
Reddit communities for Oxygen Not Included
Where players post news, questions and clipsr/Oxygennotincluded
Subreddit
The ONI subreddit: base layouts, colony tips and Spaced Out talk
How we check
We only call a server official with proof: Discord's Verified badge, or the invite published on the studio's own website, store page or official social account. Fan-run servers come from a subreddit, a wiki, a community site or a server directory. Cheat, gambling, account-selling and NSFW servers are left out. Subreddits are listed for convenience and never labelled official. The research was AI-assisted and every Official label was challenged by a second check. Member counts are a snapshot (October 12, 2026). More about how we check.
Run one of these servers and want it changed or removed? Email us and we'll sort it within a week. There's a small badge you can put on your own site if you like.
