Test version of 3D tree LODs, which you can play without any issues.

At the moment, 79 meshes for the most common trees in the game are ready.

The LODs range from 600 to 1500 tris. Compared to LODs from other tree mods, mine are slightly better optimized. Essentially, the LODs are hybrid — the tree trunk remains as a billboard, while the crown has simplified geometry from the full meshes. In this way, I tried to balance between good-looking LODs and optimization. The LODs use textures from the full tree meshes, which are then atlased together with LODs of other objects.

To generate the LODs, you need to use TexGen (make sure you have checked the HD Tree option) and DynDOLOD (you need to select Ultra instead of Tree LOD).

I'm attaching screenshots of my TexGen and DynDOLOD settings, which may help you generate the LODs. Note that for trees, in the Mesh and Reference rules for LOD Level 4, you need to set it to Level 0. You can also use Level 0 for LOD Level 8 and others to make 3D LODs load at very far distances, but obviously, this may significantly decrease FPS.

Update 1:

29 new lod meshes have been added.