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Energy - Tier 3

Postbox

Postbox

Research cost

Requires

Unlock Tier 3

Unlocks

Recipes
  • Postbox

    10× Iron, 10× Copper, 10× Silicon, 10× Cobalt

Required by

Gates

Same tier

Windmill

Windmill

Lights Pack

Lights Pack

Transport Drone

Transport Drone

Unlock Tier 4

Unlock Tier 4

Last updated: