So far its the only casino game I haven't ran out of coins and had to quit. I'm up to 3 billion and it just keeps me playing until I need a break. S o many slot machines to play and I definitely haven't played them all yet but I'm working on it. If you like casino games and you don't have to spend money to play they always have challenges and really fun mini games and events. There's always something new to keep your interest on the game. By far still my favorite casino game!