1. Essentials (Trans-Newtonian tech, basic armor & weapons, terraforming modules, cargo handling equip, tractor beams, troop transport modules, sector cmmand, flag bridge, JG const, salvage, improved/advanced geo & grav surveyinstruments)
2. Wealth creation (I go broke a LOT, probably due to my drive for 100% employment)
2. engines/reactors
3. Beam fire control range & speed
4. Thermal & active sensor strength
5. Ground unit strength (I like invading my enemies, and since occupation values are based on Defence strength, it's a huge boost to suppressing unrest)