Thanks for your answers. This was more of a graphics test, but with development going on i will change the player control & movement for sure, i think of using mouse control, too.
DrewMelton: I am really not good with 3d modelling (i know to use blenders interface, but totally suck at making something from vertexes ), so what i use instead is:
for textures, buildings, objects, interface...
Characters, Monsters & Animals i take from Open Game Art, or if i
really don't find what i need then i prototype a model with SketchUp
and finalize it in ProMotion.
P.S. You mean 500 objects in one scene?