Thanks! This "game" is mostly to show the output of the "fancy terrain generator". Pity tho, with an island that size, I'm getting a low framerate if I add too much NPCs and additional meshes like buildings.
However, making the terrain/ island only about 1/4 of the size, would be the way to go. All the other things like Ammo, medipack etc. pickups would then be simple additions. But the trees still need a proper LOD handler, right now only the ultra-low-poly version is shown, regardless of distance (4 triangles per tree). Also, I have to find a way to get smooth seams on alpha-masked, yet correctly z-sorted geometry, such as the trees. Also, fog causes a white seam problem with these alpha-masked textures, so I use a fog substitute made out of a couple of add-blended cubes around the camera - far from elegant.
What I really like here however, is how the grass adapts to the ground color, like the shade under trees, which is just individual vertex-color on the actual terrain mesh. And also, how the grass grows perpendicular to the ground angle, and not just aligned to the Y axis.