Mobile apps have emerged ever since the smartphone has been establishedinto most peoples everyday life. Almost half of those available apps in the appstores are mobile games. We study game design patterns speci cally for endlessmobile minigames, as they are one of the emerging categories. This genre hasbecome popular in the app stores with its unique characteristics which include veryshort play session iterations and its minimalist design. Game design patterns arefocused on the interaction with the player and provide knowledge and experiencewith regards to games in general. Not only are they bene cial for game designers,but also for developers, practitioners and possibly researchers, as patterns providea common terminology to share information between di erent professions.We conduct a case study including ve example games and analyze endlessmobile games to identify and create genre speci c game design patterns. We searchfor commonalities and major aspects of endless mobile minigames to facilitate theproduction of such games for developers. To con rm our results, we implementa prototype of an endless mobile minigame, which is then evaluated through asurvey.The result is a collection of game design patterns based on our cases. Thequestionnaire reveals which of those patterns are relevant and should be consideredwhen developing an endless mobile game. The result outlines that game designpatterns are considered supportive when designing a game, however requires ad-justments and revisions.