Attribution

Mods you create with this editor are yours. We claim no rights in your
project files, the images and text you add, or the Crusader Kings III mods
you export. You do not need our permission to publish, sell, or license them.

If you share a mod you are proud of and want to spread the word, a short mention
is appreciated — for example in your Steam Workshop description, mod README, or
credits:

  Made with CK3 Storyline Editor

This is a courtesy.

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Software License

Copyright (c) 2026 CK3 Storyline Editor contributors

You may use this software and its associated documentation (the "Software")
freely, including to create and publish Crusader Kings III mods. You may
download and keep a copy from the official source for your own use.

You may not share, redistribute, host, or publish the Software, modified or
not. You may not modify the Software or create derivative works of it.
You may not sell the Software for money.

A private copy on your own machine may be changed only for your own use, or to
prepare a contribution to the official Software. Do not share that copy.

These limits apply to the editor, not to mods you create with it.

If you send a contribution to the copyright holders for the official Software,
you license that contribution under this same license.

Third-party libraries in vendor/ stay under their own licenses (see
THIRD_PARTY_NOTICES.txt). Rights that applicable law does not let us restrict
also remain.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING WITHOUT LIMITATION THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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