"Real models" I mean models, which are made with programs like anim8r or Sketch Up. In this game all drawn are made with Game Maker's d3d_draw_ commands. Here is example:
//Kuva
d3d_draw_cylinder(3,4.5,3,-3,2,-3,sprite_get_texture(tex_littlethings,7),2,1,0,4)
//Sytytyslanka
d3d_draw_cylinder(-.25,-.25,0,+.25,+.25,-lanka+4.5,global.tex_ruukku,.1,.1,1,global.step)
//Pommi itse
d3d_draw_cone(2.5,-2.5,-3,-2.5,2.5,-3.25,sprite_get_texture(tex_littlethings,3),1,1,0,global.step)
d3d_draw_cone(4,-4,0,-4,4,-8,sprite_get_texture(tex_littlethings,4),1,1,0,global.step)
d3d_draw_cone(2.5,2.5,3,-2.5,-2.5,3.25,sprite_get_texture(tex_littlethings,3),1,1,0,global.step)
d3d_draw_cone(4,4,0,-4,-4,8,sprite_get_texture(tex_littlethings,4),1,1,0,global.step)
This is creates Powder Keg. d3d_draw_ commands gives just basic shapes, like ellipsoids, cones, blocks. Look closely: Link is made from chunky ellipsoid as head and hat, body and limbs are cones.
Usually doing this would make character look awful, but I am trying proof Game Maker can make relative nice 3D graphics within its limits. That's why I don't use U3D, Ogre or other 3D engines made for Game Maker.