Solidarity is Strength is a side quest which offers rewards for upgrading the Alliance Center.

Solidarity is Strength — Upgrade the Alliance Center (edit)
Requirement Reward
Upgrade Alliance Center to Level 2 Resource icon food.png 1,250
Resource icon wood.png 750
Upgrade Alliance Center to Level 3 Resource icon food.png 1,750
Resource icon wood.png 2,500
Upgrade Alliance Center to Level 4 Resource icon food.png 2,500
Resource icon wood.png 3,250
Upgrade Alliance Center to Level 5 Resource icon food.png ?
Resource icon wood.png ?
Upgrade Alliance Center to Level 6 Resource icon food.png 8,500
Resource icon wood.png 8,750
Resource icon stone.png 3,500
Upgrade Alliance Center to Level 7 Resource icon food.png 10,250
Resource icon wood.png 10,250
Resource icon stone.png 4,500
Upgrade Alliance Center to Level 8 Resource icon food.png 13,000
Resource icon wood.png 13,250
Resource icon stone.png 5,750
Upgrade Alliance Center to Level 9 Resource icon food.png 14,250
Resource icon wood.png 12,500
Resource icon stone.png 6,000
Upgrade Alliance Center to Level 19 Resource icon food.png 231,000
Resource icon wood.png 231,000
Resource icon stone.png 121,500
Upgrade Alliance Center to Level 20 Resource icon food.png 347,500
Resource icon wood.png 350,750
Resource icon stone.png 182,000
Upgrade Alliance Center to Level 21 Resource icon food.png 521,250
Resource icon wood.png 526,250
Resource icon stone.png 273,000
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