This code is released under the Creative Commons License Attribution-ShareAlike 4.0 International

You are free to:

Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:

Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.


Notices:

You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.


The full license text can be found here:
http://creativecommons.org/licenses/by-sa/4.0/


Short Version:
You can do nearly everything you want, but must credit the original author and redistribute it under the same license.




Exception:
The licensor hereby grands the legal firm Ludeon Studios, lead by Tynan Sylvester, full rights under the Creative Common Zero License. Ludeon may include content derived from this in official releases of RimWorld without owing money or credit to the licensor.

The full license text can be found here:
http://creativecommons.org/publicdomain/zero/1.0/
