I love World Creator, especially the vegetation distribution pipeline. You can create some very realistic fields with it. Im going to check out impostors too - ive seen it a few times and wondered what it's about.
Stupid Rental. My Zbrush that I haven't paid for an update in years and is perpetual Trumps that on all counts.
IndieCade 2012: The Journey Of Spacewar! (John Romero, Steve Russell)
The creator of Doom videogame shooter, John Romero interviews Steve Russell – an American computer scientist and a programmer best known for creating the Spacewar! It is one of the earliest games in the world developed in 1961 by him and his colleagues of the Tech Model Railroad Club at MIT. John Romero is one of the co-founders of the id Software Company that created Wolfenstein 3D and Quake.