Complex sentence: The game world is divided into an isometric series of empty square plots of ground--from which there are 36 possible in total--and depending on the Artifact (AF) which is placed on the plot, a different Land is generated on it.
Split into simpler sentences: The game world is divided into an isometric series of empty square plots of ground from which there are 36 possible in total. Depending on the Artifact (AF) which is placed on the plot, a different Land is generated on it.