We understand there are many people who wish to let us know their "home rules" and make suggestions. We know that people would love to see their favorite IP made into a CATAN game. We know that many people are aspiring game designers. However, Catan Studio, Catan GmbH, and Asmodee North America cannot accept unsolicited game design, development, or writing submissions.
If you wish to see our IP Policy, you can view it here: https://www.catan.com/about-us/catan-gmbh-and-catan-studio-ip-policy