I saw another Mars Catan on Thingiverse, but I didn't really like the design. So, I made a whole new one from scratch in TinkerCad. You won't need supports or a brim/raft. I printed 3 tiles at a time, adding the robber (Sandstorm) into one of the prints. I used Prusament Lipstick Red PETG. You could paint or print your tiles in different colors to make them easier to distinguish, too. The infill doesn't really matter, but I printed at around 10% infill. The holes are for the numbers. Speaking of which, I haven't made the numbers, roads, cities, settlements, or cards yet, so you'll have to use normal Catan pieces to play.
The resources are:
The author hasn't provided the model origin yet.