Puzzles can take many forms, whether it be about shapes, instructions, physics, and/or portals. As time passes, the best puzzle co-op games will continue to evolve and grow. Updated on December 26 ...

The jungles of Siam are hiding all sorts of secrets, and scattered across it is a series of puzzles that might just be the hardest in the entire game. When you first find the hidden pyramid as par ...

Test your mettle with this puzzle created exclusively for "Smithsonian" readers Test your mettle with this puzzle created exclusively for 'Smithsonian' readers Test your mettle with this puzzle ...