A game is a form of play that can be enjoyed for entertainment or used as an educational tool. It usually involves some sort of challenge and interaction, but can also be considered art (such as jigsaw puzzles), work (such as spectator sports or games played for money) or simply entertainment (such as movies or books). However, a clear definition of a game is not always possible since a particular game may have many different meanings depending on the culture and historical context that it exists in.

There are a variety of definitions of game that have been proposed over time, most notably by Bernard Suits who defines games as a form of goal-directed activity that is deliberately chosen and pursued through inefficient means. This definition highlights the agency of players to choose when they wish to play a game and that the formal elements and ludological agreement of a game often prevents players from taking the most efficient route towards a game’s goals.

Another definition of a game has been offered by Tracey Fullerton who argues that a game is a closed formal system with rules and tools that engages players in a structured conflict that ends with unequal outcomes for the participants. This is a more holistic approach to games which takes into account the social and psychological aspects of the playing experience.

Attempts to define a game have been met with some controversy as some scholars argue that the concept of a game is inherently subjective and cannot be objectively defined. However, this view has been challenged by other scholars who argue that a useful definition of a game must take into account previous research on the topic and be applicable to both physical and digital games.

A further argument is that a game is something that is unique to digital gaming which differs from other forms of entertainment, such as cinema or novels, due to the fact that games are interactive. This allows for a much wider range of interactions and experiences to be incorporated into the definition of a game, including multiplayer online games and virtual worlds.

The most commonly accepted definition of a game today is one that includes elements of both play and work, and refers to a structure that involves a set of rules, challenges and player interaction. This definition is widely embraced by the gaming industry and has been adapted into a number of different types of games, such as social, educational and serious games.

A key element of this definition is that it aims to provide entertainment that is suited to the target audience. This can be achieved through a variety of features, such as a narrative that is tailored to the interests of the audience or an interactive interface that is accessible to a broad range of users. These features have led to the creation of a wide range of genres, from role-playing games to social simulations. In addition, a number of these games have been developed to help people learn specific skills, such as combating virtual diseases and training for professional careers in finance or engineering.