Before terraforming Mars, Surviving Mars is required: Paradox Interactive; Steam.
Please contact me about board gaming in Orange County.
After matching all the pieces and so forth the one I think it is would be a stone piece with the building plans on it. So my question is should I have two of these or is one extra?
I think you're talking about the Architect, and you should have two.
Here's an inventory of pieces in these two pictures.
Sheet#2 (See top row; click to enlarge)