A kind of introduction to the game, often in the form of a separate level (mission, script). The tutorial aims to familiarize the player with the control system and the basic rules of the game.
The interactive tutorial is intended to be a more accessible and effective form of learning the rules of the game than printed or digital instructions. Usually, completing the tutorial is not mandatory. The exception is a situation where it is not a separate level, but is integrated into the beginning of the game; in this case, however, there is usually the option to turn off messages with explanations and hints.