Firstly Thanks hoojiwana for having a detailed and current list here on the forums. I installed Unity 4.3.3f(latest at printing) but had some issues with animation and emissive textures. Specifically i could import blender animations and animate part in game, but any animation created in unity would not work in game. here is a sample of the KSP.log: [LOG 13:02:39.070] Load(Model): domelight/model [ERR 13:02:39.072] File error: (null) at (wrapper managed-to-native) UnityEngine.AnimationClip:SetCurve (string,System.Type,string,UnityEngine.AnimationCurve) at A..ReadAnimation (System.IO.BinaryReader br, UnityEngine.GameObject o) [0x00000] in <filename unknown>:0 at A..ReadChild (System.IO.BinaryReader br, UnityEngine.Transform parent) [0x00000] in <filename unknown>:0 at A.. (.UrlFile ) [0x00000] in <filename unknown>:0 [WRN 13:02:39.077] Model load error in 'E:\Games\Kerbal Space Program 22.0 - Copy\KSP_win\GameData\domelight\model.mu' The fault seams to be in the way part tools writes the .mu file or the way KSP Loads it. After trawling this forum and trying numerous combinations in hierarchy and import settings i found a thread that covered the issue i was experiencing: http://forum.kerbalspaceprogram.com/threads/25023-Emissive-tutorial?p=921862&viewfull=1#post921862 If you have a chance it would be good to have a note under the 'UNITY/CONFIGS Animation' title for people using unity based animations or emissive textures to use 4.2.x versions. I now have Emissive textures animating in unity 4.2.0 with part tools .23 (blender 2.69) hope this helps.