Lv 1. Legion Level - Receive new Legion Techs and increase the cap of Legion members.
Lv 1. Levy Boost - Increase the amount of Silver you can levy.
Lv 5. Levy-DON - Increase the chance of extra Silver being donated to one of Legion Techs during levy.
Lv 20. Farm Tools - Increase farming productivity by 2.
Lv 25. Reputation - Raise the RP increase percentage.
Lv 30. Trade-DON A - Increase chance of extra Silver being donated to a Legion Tech in your trade with system.
Lv 35. Farm MGMT - Increase the duration of occupation of your farms.
Lv 40. Income - Increase the percentage of trade income.
Lv 50. Trade-DON B - Increase the chance of extra Silver being donated to a Legion Tech through caravan trade.
Lv 60. Saving - Lower the Silver requirement for Legion Tech upgrades.
Lv 61. DING' - ACHIEVEMENT UNLOCKED!...... One eternity later..... Scientists are still figuring out what has unlocked. 😶