Unstoppable Machine is a side quest which offers rewards for upgrading the Siege Workshop.

Unstoppable Machine — Upgrade the Siege Workshop (edit)
Requirement Reward
Upgrade Siege Workshop to Level 2 Resource icon food.png 1,000
Resource icon wood.png 750
Upgrade Siege Workshop to Level 3 Resource icon food.png 1,250
Resource icon wood.png 2,500
Upgrade Siege Workshop to Level 4 Resource icon food.png 2,000
Resource icon wood.png 3,250
Upgrade Siege Workshop to Level 5 Resource icon food.png 9,000
Resource icon wood.png 11,250
Upgrade Siege Workshop to Level 6 Resource icon food.png 6,250
Resource icon wood.png 8,750
Resource icon stone.png 4,250
Upgrade Siege Workshop to Level 7 Resource icon food.png 7,500
Resource icon wood.png 10,250
Resource icon stone.png 5,500
Upgrade Siege Workshop to Level 8 Resource icon food.png 9,750
Resource icon wood.png 13,250
Resource icon stone.png 7,500
Upgrade Siege Workshop to Level 9 Resource icon food.png 10,500
Resource icon wood.png 12,500
Resource icon stone.png 7,750
Upgrade Siege Workshop to Level 19 Resource icon food.png 178,750
Resource icon wood.png 233,000
Resource icon stone.png 156,750
Upgrade Siege Workshop to Level 19 Resource icon food.png 268,000
Resource icon wood.png 350,750
Resource icon stone.png 235,250
Quests
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Side Quests
Building WallWatchtowerCastle
FarmLumber MillQuarryGoldmine
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Collect FoodWoodStoneGold
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