A game mechanic is a rule or system that defines how players interact with a game. It includes actions like jumping, shooting, or collecting items, which contribute to the overall gameplay experience. Game mechanics help create challenges and objectives, guiding players on what they can do within the game world. These mechanics can vary widely between different genres, such as strategy, role-playing, or puzzle games. For example, in a platformer, players might navigate levels by jumping between platforms, while in a card game, players may draw and play cards to achieve victory. Understanding game mechanics is essential for both game design and player engagement.