Catalogs for type K stars and their planetary systems? I am doing data collection on all type K stars, and their planetary system so I may develop an algorithm for a planetary formation simulation with the Unity game engine.
Where could such a catalog of stars be found?
There are many star catalogues, and from your question I cannot easily tell which would be the best one for you. You probably need one which contains positions of the star and their spectral type, maybe further properties as well.
Since you mentioned planetary systems, I think you might actually want to look at NASA Exoplanet archive (and filter it for K-type central stars).