A Joke Game is a game which exists only as a joke. Unlike a game which happens to focus on humor, Joke Games often deliver a joke to the exclusion of gameplay. The Joke is usually satire, parody, or absurdism. Joke games are usually minimalist, but long and complicated ones do exist.
Intentionally bad games are an especially popular type of joke game. In an intentionally bad game, the game author parodies the work of inexperienced and unskilled game authors by making a ridiculously poor game.