You may distribute, modify or reuse this content as long as you comply
with the Oxygen Not Included license and rules (such as
https://www.klei.com/mod-player-creation-policy and
https://support.klei.com/hc/en-us/articles/360029556052-Modding-Guidelines ).

Since practically all mod content is a derivative work of Oxygen Not Included,
that license and rules apply to this mod content as well. If there's any clearly
original content or any other cases where this does not apply, the MIT license
is used (https://mit-license.org/).