The Cryptic Crawl started in 2002 and is like a fancier-than-normal road rally where teams solve puzzles they find in the real world.  (Note: there are more Cryptic Crawls that were not filmed and I'm working on restoring their websites) 

Videos

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Upon learning that Shortfinger the Pirate had buried a second fortune, teams examined chest full of artifacts which lead them to a real island to dig for treasure.
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Modeled after the TV game show, Race to Escape saw 3-player teams compete to solve an "escape room" in the fastest time.​

Websites

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In 2006, Crawlers had to search for the tomb of Pharaoh Sparkhenaten along the river Nile.
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The worst students of the American branch of Hogwarts School of Magic had to attend classes and discover the source of a new type of Chaos magic which threatened the world.  
Two teams attempt to solve puzzles left for them by a murdered researcher of religious artifacts.  But is it better if those artifacts remain undisturbed?

Snake Pit

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Based on the Korean game show The Genius, 9 players player cooperative games with an element of backstabbing to become the sole winner.