Crystal Dynamics has partnered with Geocaching.com, developer of Groundspeak, a tool that enables more than 5 million users to seek out over 1.6 million location-based adventures in the real world. The deal will see a creation of a series of location-based adventures in the upcoming Tomb Raider game. Crystal Dynamics will be using both the traditional Geocaching.com treasure hunting format, as well as Groundspeak’s latest photo-based project, Geocaching Challenges. Several initiatives from the firms will be announced over the coming year. Tomb Raider is slated for release in the fall.