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If you're already a member, click here

We require you to register for a few reasons. Firstly, it cuts down abuse of the system. Secondly, it means we can let you save older cities and work on them later. Thirdly, it means we can let you share cities, so you can collaborate with your friends.

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• You can save your city designs

• You can send your city design to friends as an e-card

• You can share your city design with other city designers

• You can enter your cities in the gallery

• You can design many cities at once

• You can print the cities you create

• You can use your city designs as desktop wallpaper