Galactic Empire/Tree

The Galactic Empire have access to the following buildings, units and technologies:

Troop Center
Units* Trooper Recruit -> Trooper -> Hvy Trooper -> Repeater Trooper
* Mounted Trooper -> Hvy Mounted Trooper
* Anti-Air Trooper -> Hvy Anti-Air Trooper
* Grenade Trooper

Technologies* MacroBinoculars -> Portable Scanners -> Integrated Rangefinder
* Lighter Armor -> Dexterity
* Droid Assistants

Power Core
Units* Power Droid (Clone Campaigns only)

Technologies* Strengthened Assembly (Clone Campaigns only)
* Efficient Buildings (Clone Campaigns only)
* Power Core Shielding (Clone Campaigns only)

Mech Factory
Units* Scout
* Strike Mech -> Hvy Strike Mech
* Mech Destroyer -> Hvy Mech Destroyer
* Assault Mech -> Hvy Assault Mech

Technologies* Upgraded Generator -> Advanced Generator
* Walker Research (unique tech)
* Advanced Redesign
* Technicians

Shipyard
Units* Utility Trawler
* Transport Ship
* Lt Frigate -> Frigate -> Adv Frigate
* Destroyer -> Hvy Destroyer
* Anti-Air Destroyer -> Hvy Anti-Air Destroyer
* Cruiser -> Adv Cruiser

AquaHarvester
Sensor Buoy
(Clone Campaigns only)

Sentry Post
Light Turret
Can be upgraded to
* Medium Turret -> Advanced Turret

Anti-Air Turret
Can be upgraded to
* Adv Anti-Air Turret

Light Wall
Gate
Medium Wall
Can be upgraded to
* Hvy Wall -> Shield Wall

Shield Generator
Technologies* Strengthened Superstructure (Clone Campaigns only)
* Superconducting Shields (Clone Campaigns only)

Sith Temple
Units* Sith Apprentice -> Sith Knight
* Sith Master

Technologies* Jedi/Sith Stamina -> Force Strong
* Jedi/Sith Agility
* Jedi/Sith Concentration
* Jedi/Sith Purge
* Force Influence
* Jedi/Sith Meditation
* Jedi/Sith Perception

Fortress
Units* Dark Trooper Phase 1 -> Dark Trooper Phase 2 (unique unit)
* Bounty Hunter
* Cannon
* Air Cruiser (Clone Campaigns only)

Technologies* Bothan SpyNet
* Attack Programming
* Automated Processes
* Presidium

Prefab Shelter
Command Center
Units* Worker
* Medic
* Probot (unique unit)

Technologies* Basic Training
* Sensor Beacon -> Sensor Array
* Upgraded Motivator -> Optimized Motivator
* Bacta Tanks
* Tech Level 2 -> Tech Level 3 -> Tech Level 4

Hvy Weapons Factory
Units* Artillery -> Hvy Artillery
* Anti-Air Mobile -> Hvy Anti-Air Mobile
* Pummel -> Hvy Pummel

Technologies* Strengthened Frame
* Mechanics
* Anti-Air Retrofit (Clone Campaigns only)

Airbase
Units* Fighter -> Fast Fighter -> Adv Fighter
* Bomber -> Enh Bomber -> Adv Bomber
* Air Transport

Technologies* Flight School
* Enlarged Bomb Hold
* Efficient Manufacturing

War Center
Technologies* Basic Armor -> Light Armor -> Hvy Armor
* Elevation Tracking -> External Sensor Pod -> Targeting Sensor
* Light Plating -> Medium Plating -> Hvy Plating
* Primary Focusing Coils -> Cooling Sleeves -> Advanced Power Pack
* Redesigned Specifications
* Grenadier Training
* Advanced Scanning Capabilities

Research Center
Technologies* Durasteel Reinforced Support Beams -> Permacite Plating
* Ion Accu-Accelerator
* Homing Sensors
* Rotation Bearings
* Hvy Weapons Engineers
* Power Calibrator
* Tracking and Targeting Computers
* Medium Turret -> Advanced Turret
* Hvy Wall -> Shield Wall

Ore Proc Ctr
Technologies* Beamdrill Mining -> Hvy Duty Beamdrill

Nova Crystal Proc Ctr
Technologies* Beamdrill Mining -> Hvy Duty Beamdrill

Carbon Proc Ctr
Technologies* Handheld CarbonExtractor -> Enhanced CarbonExtractor -> Hvy Duty CarbonExtractor

Spaceport
Units* Cargo Hovercraft

Technologies* Holonet Tranceiver
* Hutt Endorsement -> Galactic Banking -> Galactic Trade Commission -> Altered Bargains (unique tech)

Animal Nursery
Technologies* Stimulants -> Genetics -> Cloning

Food Proc Ctr
Technologies* Irrigation -> Harvesting Program -> Advanced Harvesting Program