“游戏”是历史最为古老的人类活动之一,游戏作为一种不可或缺的文化现象,已经被学术界纳入研究视野,从计算机理论、教育学、心理学、文化批评等角度展开的游戏研究已经颇成气候,专门以游戏为对象的“游戏学”(Ludology)已经出现。然而,在理论界,却长期没有一个学界认可的游戏概念,这些研究的基础备受质疑。本文梳理了“游戏”定义的三种主要方式,并对作为文本的游戏进行了系统的形式分析,利用符号学的基本原理和方法,最终通过论证为“游戏”这一概念找到了一个合理的形式定义,为游戏符号学构建一个切实的基础。 Game is one of the oldest human activities in history. As an indispensable cultural phenomenon, the game has been incorporated into the field of study by academia. From the perspective of computer theory, pedagogy, psychology and cultural criticism, Game research is already a bit of a niche, and game-specific “Ludology” has emerged. However, in the theory circle, there is no concept of game recognized by the academic circles for a long time. The basis of these studies is highly questioned. This paper combs the three main ways of definition of “game”, analyzes the game as a text systematically, uses the basic principles and methods of semiology, and finally finds out the concept of “game” through demonstration. A reasonable definition of form builds a solid foundation for game semiotics.