When playing at FoxwoodsONLINE, you can increase your Player Level by earning Experience Points. Experience Points are gained every time you wager coins in a game. By increasing your Player Level, you unlock additional Slots Games.
For example, if a game is locked, you need to reach the corresponding level directly in front of the game, as per the image below. For example, you need to reach Level 3 in order to unlock Secret of the Mermaid.
You can view your Player Level, as well as your Experience Bar, at the top of every game screen.