International audience How to share an individual life story through play? Isn't there a contradiction in wanting to transmit established events to a player who is in search of possibilities of appropriation, of exercising what is possible? And conversely, in this case, how to mediate the lived experience of others? How can we encourage involvement on a ludic and narrative level, these two aspects being in this case inseparable? While these questions arise repeatedly in the context of games with a strong narrative component, they were central to a research-creation project entitled Lie in my heart (Expressive Gamestudio, 2019). Presented as a production inspired by real events, Lie in my heart is a game that proposes a reflection on videogame autobiography. It addresses the themes of the loss of a loved one who has chosen to end his or her life, the relationship between childhood and death, and resilience. This article develops a model of ludonarrative analysis that allows us to provide answers to the preceding problems. Then we relate this model to the creative choices that were established during the development of Lie in my heart. We finally explore some elements of reception of the game.