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Blueprint Exchange Icon

The Blueprint Exchange is a new method to gain rewards in City Design Challenges introduced in Design Challenges Season 4. It replaced the previous reward format. In a Blueprint Exchange you get to choose which rewards you would like and you can exchange blueprints to acquire them. You can only purchase each reward once. After a reward has been purchased it will turn dark blue.

Since Design Challenges Season 9 the price of the neighborhood and city league buildings were swapped.

Blueprints required for a reward since Design Challenges Season 9
Reward Blueprints
New Building 2,000
Neighborhood League Building 1,500
City League Building 1,000
3 Platinum Keys 600
3 Golden Keys 300
2 of each Expansion Item 150
2 of each Beach Item 250
2 of each Mountain Item 250
50 Simcash 400
5,000 Simoleons 50


Since Design Challenges Season 6 the Storage Items were removed, and the Expansion, Mountain, and Beach items prices were lowered.

Blueprints required for a reward since Design Challenges Season 6
Reward Blueprints
New Building 2,000
City League Building 1,500
Neighborhood League Building 1,000
3 Platinum Keys 600
3 Golden Keys 300
2 of each Expansion Item 150
2 of each Beach Item 250
2 of each Mountain Item 250
50 Simcash 400
5,000 Simoleons 50
Blueprints required for reward up to Design Challenges Season 6
Reward Blueprints
New Building 2,000
City League Building 1,500
Neighborhood League Building 1,000
3 Platinum Keys 600
3 Golden Keys 300
2 of each Storage Item 200
2 of each Expansion Item 200
2 of each Beach Item 300
2 of each Mountain Item 300
50 Simcash 400
5,000 Simoleons 50
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