There a 8 upgradable Upgrades that greatly increase your stats, click the links above to get a breakdown on what each upgrade does. They are:
Skirmish
Attack Force
Reference: "Skirmish Level"
Resistance
Defense Force
Reference: "Resistance Level"
Sleeper
Stealth Force
Reference: "Sleeper Level"
Surveillance
Security Force
Reference: "Surveillance Level"
Unit Production
Produce Soldiers
Reference: "Unit Production or UP"
Mana Production
Produce Mana
Reference: "Mana Production"
Income Deposit
Deposits a portion of your income into your bank every turn
Reference: "Income Deposit"
Technology
Attack, Defense, Stealth, Security and Supernatural Power
Reference: "Technology Level"
