Creating a Game Idea -- Defining a Game Idea -- The Appeal of Games -- Game Design Elements -- Understanding Game Loops -- Randomness in Games -- Psychology in Games -- Game Balance -- Understanding Fun -- Fun in Movement -- Fun in Puzzles -- Fun in Combat -- Fun in Strategy -- Fun in Economics -- Fun in Storytelling -- Turning a Game Idea Into a Real Game -- Prototyping -- Card Game Prototypes -- Understanding Game Engines -- Playing Field Prototypes -- Level Design Prototypes -- Movement Prototypes -- Combat Prototypes -- Resource Management Prototypes -- Puzzle Prototypes -- Selling a Game to the Market.