The simplified GECK model in machinations.io [[The Garden of Eden Creation Kit (GECK)]] https://my.machinations.io/public/Geck-/09a4e5c2a260fcdf011dfc7c94b51a962 it is an abstraction for a simple terraforming game we are developing in the Games and Worldmaking seminar. GECK stands for Garden of Eden Creation Kit :)