I like the "Minecraft" variant in the Aztecs Courtyard Market. The St. Patty's Day minigame is challenging and requires thought. The mini-gamed from the Wildlife Event was fun. Perhaps a new game based on the classic "Concentration" game? Game currency gets used to purchase turns opening doors on a "board" with the hope of making a match. If so, parts of a grand prize are revealed. If not, the doors close and the player spends more currency to try again. When all of the doors have been opened the player collects the prize. Daily specials, and other trinkets, could be included as items to match up.