There are a total of 3 little mini games you can play in this game. Once you have your Homestead built up, you will be able to play them there as well.

Fanorona: You find this game inside of the Manor at the Homestead. To win this game, you must capture all of the opponents pieces. You must move a piece away or towards the opposite color. When one is taken all of the ones in a straight line from it will get removed. Pick to move second. This is on Expert difficulty automatically, so don't expect to have an easy time here. Sometimes the AI will make a move that ends up removing a ton of your pieces with a combo. If it looks like you're going to lose, you probably will. Use the quit out method to try again. If you can manage a combo or two yourself then you stand a decent chance. Let the AI go first, and try to follow the below video. If it isn't doing the same moves, quit and try again. This might be your best shot at getting this won.

Bowls: Travel South of the Manor to the little town and right near the inn is an outside game. This game is Intermediate difficulty (phew). One player throws the main ball on the ground, then each players gets 4 balls to try and get as close as they can to the main one. You throw until you are closest. Whoever ends with the most balls closest to the main, wins. Try to make the blue circle as small as you can when throwing. If it's possible, knock an opponents ball away while also making yours closer. This is the easiest of the 3 games but it might take some getting used to before you win. There are 2 rounds to win.

Morris: Right next to Bawls is the Inn and a tavern. Inside is the game. Here you must place pieces and create 3 in a line to take away an opponents piece. It's usually best to start and place your pieces in two corners. After you run out of pieces (after placing them), you must move your current ones. At 3 pieces left you can move them anywhere on the board. This game is also very difficult and on Expert when you play it at the Homestead. Watch the video below as a reference. This may take several attempts.

Note: Keep in mind, you must bet and win 500 total for a thieves guild challenge.