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Upgrade
Influcence Cost
Facility (Quality)
Trainer Levels
Bulk Resource Bonuses
Bulk Resource Requirements
Master's Siege Engine +0 200

Bulk Wood (10)

Bulk Food (10)

Bulk Ore (10)

Bulk Stone (10)

Trade Goods (10)

Master's Siege Engine +1 300

Bulk Wood (15)

Bulk Food (15)

Bulk Ore (15)

Bulk Stone (15)

Trade Goods (15)

Master's Siege Engine +2 400

Bulk Wood (20)

Bulk Food (20)

Bulk Ore (20)

Bulk Stone (20)

Trade Goods (20)

Master's Siege Engine +3 500

Bulk Wood (25)

Bulk Food (25)

Bulk Ore (25)

Bulk Stone (25)

Trade Goods (25)

Master's Siege Engine +4 600

Bulk Wood (30)

Bulk Food (30)

Bulk Ore (30)

Bulk Stone (30)

Trade Goods (30)

Master's Siege Engine +5 700

Bulk Wood (35)

Bulk Food (35)

Bulk Ore (35)

Bulk Stone (35)

Trade Goods (35)