- Same as 3B but with fixes for Torian tech tree. This adds a similar four-part structure for Planetary Improvements to try and stagger the development of economic improvements, research improvements, and everything else.
- Schools are replaced by a Super Project, which helps to avoid an early-game choke.
- Some Torian techs have been moved around and new ones have been added:
- Advanced Space Liberation: Leads to Advanced Manufacturing, Planetary Bombardment, Planetary Defence, Advanced Logistics, More Space Weapons and Even More Space Weapons.
- Advanced Manufacturing: Leads to Xeno Factory Construction, Fusion Power Plants.
- Planetary Invasion : Leads to Advanced Troop Mod. All the other invasion techs are part of the Advanced Space Liberation branch now.
- Interstellar Construction: Is broken into parts I and II.