H.Y.S.T.

From BoardGameGeek:

H.Y.S.T. (How You Steal Things), is a board game for 2-6 players. Each of you is a thief that needs to steal the diamond for a mysterious wealthy buyer. This particular diamond is housed in a museum that has "state of the art" security. Also, the museum's halls are a maze of passageways that can be arranged in over 14 billion ways using 9 tiles to create the board. In the middle of the museum is the target of your heist, the diamond. You will use action cards that assist you to bypass security, hinder opponents, or gain movement. Regular movement is taken using dice rolls. Get to the diamond first to steal it, Be warned, other thieves can steal the diamond from you using luck or action cards. Choose your exit wisely as another thief may catch you. Be the first to get out with the diamond to win the game.