Those were plains. My computer couldn't handle that many real trees. It had trouble with that many plains. If you get the game dev . Keep in mind that the game dev needs to phone home periodically. I don't remember if the other version does. 

According to Nerd3D Game Dev is the only version that needs to phone home so Poser 10/2014 does not need to.  It is anyone's guess what Poser 11/2016 will do.

 

 

I use Poser 13 on Windows 11 - For Scene set up I use a Geekcom A5 -  Ryzen 9 5900HX, with 64 gig ram and 3 TB  storage, mini PC with final rendering done on normal sized desktop using an AMD Ryzen Threadipper 1950X CPU, Corsair Hydro H100i CPU cooler, 3XS EVGA GTX 1080i SC with 11g Ram, 4 X 16gig Corsair DDR4 Ram and a Corsair RM 100 PSU .   The desktop is in a remote location with rendering done via Queue Manager which gives me a clearer desktop and quieter computer room.