Built into the software is a 3D modeling tool based on simple geometric shapes, that allows residents to build virtual objects.
They can explore the world (known as the grid), meet other residents, socialize, participate in both individual and group activities, build, create, shop and trade virtual property and services with one another.
Part of Sierra Leone's capital of Freetown appears as the greyish area in the lower left corner.
This satellite image covers an area of 32 x 45 km (20 x 28 mi).
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