本文分析近年盛行的電子遊戲實況活動。從分心、不專注於電玩的現象開始，本文以「如何玩」這個提問來引導論證「嬉玩」與「遊戲」這組概念在分析上的效力，藉此，本文論證了電玩實況活動中的心智狀態與活動是游移在電玩活動與嬉鬧互動，在嚴肅遊戲與嬉戲玩耍之間游移，這樣的分神狀態之中也產生了有樂趣、具有實效的遊戲性。 從技術架構的觀點來看，以即時串流的技術為基礎，電玩實況活動結合了即時傳輸與即時互動。使用者所獲致的遊戲聆賞經驗以及互動是即時且與他人同步，便也構成了網路媒介之下的共時經驗，實況中以電玩活動為對象的起鬨也便具共在的實感。本文從聊天室起鬨、技術戲耍挪用等現象中論證了基於遊戲性旨趣的共謀嬉玩。嘲諷、干擾的對抗性是為了製造分神的條件，從中產生張力並獲致遊戲性，而包括實況主在內的所有參與者，皆是在這樣的分神狀態中嬉玩，維繫歡騰的共感情緒。 電子遊戲具有將遊戲性限定在其中的封閉性質，也因此對於電玩的遊戲經驗多有私密、個人的想像，即時串流的電玩實況活動便是打開了這樣的封閉性質。透過網路媒介將人匯聚在遊戲活動周圍，不僅共享了電玩活動本身的樂趣，也在即時串流之下共時的互動跟聆賞經驗中以遊戲為對象群聚嬉戲。這樣的網路活動之所以盛行，顯示了人對遊戲性的需求不僅是來自遊戲中，也來自與他人玩在一起的連結共感，電玩實況便是實現了這樣的需求。 / Taking the prevailing "video game live streaming" activities as research object, this thesis takes "play" and "game" as a set of core concepts, and begins the exploration into their conceptual effect. Setting out the arguments with "How to Play" question, this thesis concludes that the mentality and activities in video game live streaming are in an "in-between" condition. Between video game activity and playful disturbance, seriousness and playfulness, there are gameplay with actual effect. Taking the technical conditions into consideration, video game live streaming consists of live media transportation and live interaction. Users' experiences synchronize with each other, thus contribute to the "togetherness" mediated through the Internet, and also the carnivalistic interactions and disturbance in the live channel. From the fuss and disturbance in the chatroom to the appropriation of streaming "plugins", this thesis argues that these actions conducted by streamer and users contribute to the "distractive" scenario, and the conducts are all based on "the interest of play". Different from serious and immersive mentality which is deemed as the fundamental of playing and gaming, the gameplay in live stream is based on distraction, which is the core condition that brings tension and thus playfulness. All the users in video game live streaming, the streamer included, are connected and forged into a synchronized togetherness by this kind of distractive, carnivalistic playfulness. Digital video games have tributes of enclosure, which require concentration, seriousness and absorption. Video game live streaming opens up this kind of enclosure, and brings people in and around the video game activities. In the live channel, users experience the joy and fun of the game itself together in a synchronized way, and also act on the interest of play, creating distraction and disturbance that bring to playful experiences, and that explains why this kind of Internet activity prevails. This thesis shows that the need of gameplay comes not only from game activities themselves, but also from the desire to "play together". In a digital age, video game live streaming is just the fulfillment of this kind of desire.