Gamification has been an active area of interest for both academicians and practitioners for the last decade. Gamification has extended its application to many areas, including the workplace. This study aims to shed light on the theoretical scenario of the gamification literature at the workplace. The article reviews the recent literature on gamification in this context and analyses the theories, constructs, and frameworks used to study the phenomenon. There is a lack of focus on the theoretical framework in the existing reviews. We create a broad taxonomy of theories used in the literature of gamification of the workplace. Further, we also propose a causal-chain framework to explain how gamification influences employees in the workplace. The results indicate that gamification at the workplace is still in its nascent stage and requires more rigorous and in-depth research. We believe that the insights generated provide research avenues for future research studies.