Terran technology tree

Terran Tech Tree Lines:

Colonization Tree

• Advanced Construction - Boosts to manufacturing improvements and starbase modules
  
• Institutional Research - Research improvements and starbase modules
  
• Agricultural Adaptation - Food production improvements
  
• Xeno Biology - Contains empire-wide boosts to fertility and fertility improvements
  
• Environmental Engineering - Contains colony development improvements and techs to colonize difficult planets
  

Engineering Tree

• Ion Drive - Contains engine modules and ship speed manipulation techs
  
• Interstellar Survey - Contain precursor relic bonus techs and sensor techs
  
• Life Support - Life support and starbase area of effect techs
  
• Zero Gravity Construction - Larger ship hull sizes and repairs
  
• Interstellar Logistics - Carriers, Logistics, and Mining
  

Warfare Tree

• Weapon Systems - Standard Weapons
  
• Militarization - Planetary Invasions/Fortification
  
• Defense Systems - Standard Defenses
  

Governance Tree

• Interstellar Governance - Unlocks bonuses to manufacturing, research, and/or influence
  
• Diplomacy - Unlocks diplomatic treaties and bonuses
  
• Cultural Influence - Bonuses to Influence
  
• Xeno Economics - Income with some Influence
  
• Interstellar Trade - Trade (w/ 1 Tech that lets you specialize in Research)
  
• Xeno Entertainment - Focuses on Approval & Tourism