The mountain peak collection was one of Google's trickiest mapping projects to photograph, as the adventure team dealt with torrential downpours, mudslides and even a 6.9-magnitute earthquake near Everest in the middle of the night.

CNN: Google Maps climbs world's tallest mountains

Experienced developers such as the Wasteland 2 team and the Double Fine Adventure team who come to the table with a great concept, or lesser known devs who come with a working, if unfinished, project already under their belts, such as Grim Dawn.

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Adventure racing is a team sport (typically with teams of three or four) in which the entire team has to finish as a group.

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