Game designer
A game designer is someone who designs games. The term "game designer" usually refers to someone who designs computer or video games, but can also be a person who designs older games like a board game.
Game Designer Media
Charles Darrow's 1935 patent for Monopoly includes specific design elements developed during the prototype phase. Prototypes are common in the later stages of board game design, and "prototype circles" provide an opportunity for designers to play and critique each other's games.
A set of poker dice and a dice cup
All casino games are designed to mathematically favor the house. The house edge for a slot machine can range widely between 2 and 15 percent.