Some games use "player turns" where one player gets to perform their actions before another player can perform any on "their" turn ("Monopoly" and chess would be classic examples). Some use "game turns", where all players contribute to the actions of a single turn (board-game simulations of American football tend to have both players pick plays and then determine the outcome; each 'play' or 'down' can be considered a turn). Some games have 'game turns' that consist of a round of player turns, possibly with other actions added in ("Civilization" plays with a series of player turns followed by a trading round in which all players participate).