My work:
I claim the rights for my original creative work. I am open to cooperation but do not use my work for deriving work without permission.

Images in-game:
Celtic Union flag[en.wikipedia.org] by Robert Berthelier, CC-License
Celtic USA flag by NasrKSA, permission granted

Images on Workshop page:
Celtitc Warriors[www.artstation.com] by Roman Zawadzki, permission granted

Music & Sound:
Music asset from freemusicarchive.org
Sound asset from freesound.org

Monument Image:
Celtic stone circle[www.deviantart.com] by Ykni, Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License

Text:
Some texts in-game are based on Wikipedia and are therefor under CC-License.
Some texts in-game are inspired by ChatGPT
Lots of descriptions by HHolberton

Thanks to Paradox for a great game and the good mod support!