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 part of the story you’ll have to solve a small puzzle where you must link up some cogwheels to activate a mechanism,

Indiana Jones and the Great Circle lets players decipher a lot of mysteries on their own, but its approach to main story puzzles is admirable, too.