Progression
Economy Upgrades
Extra income matters once your base is no longer fragile. Economy upgrades shine when they accelerate a defense plan that is already stable.
Tier
A
Why it lands here
Economy Upgrades matters because it changes how often your base survives the moment things go wrong. In a defense game, the best priorities either stabilize the gate or make every turret cycle matter more.
Recommended use: push this sooner if it fixes a real weakness in your current setup, delay it if a more basic defensive layer is still missing, and avoid panic-spending into it just because a run feels shaky.
incomeprogressionlong runs