When it comes to coding you don't have to actually do it, rpgmaker or other game making engines let you make games after you learn to use them, sure you can add some extra scripts but its not required. It's guys using their own engines or writing them for others that are really skilled.
As for PC you can use basically any rig that can run new games, rendering a photorealistic iray image from a 3d scene takes anywhere from few minutes to hours, with less time if you have gpu with lots of cuda cores and enough memory for your scene to fit in. Basically new nvidia pascal cards can render iray scenes in few mins. Setting the scene and getting all the required assets takes more time, but you can simply buy a lot of models, poses, objects etc on the marketplace. You can set lots of things (like breasts shape or whatever) with morphs, transforms and basic poser controls, but if you want a really new model it takes huge amount of effort, from shaping (sculpting) with zbrush to taking pictures from different angles for textures and uv-mapping them to fit your shape. And motion capture equipment if you want movement/animations. If you can do that you can even make decent money selling your own made assets to others.
But for successful games ideas and scenario writing are as important as the looks and GreyInu seems to be delivering quite well in this area.
) and Nadia.
