Your Sister Achievements Here is the full list of all 6 Your Sister achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply Your sister 10Stay with your sister 10mins Your sister 20Stay with your sister 20mins Your sister 30Stay with your sister 30mins Your sister 40Stay with your sister 40mins Your sister 50Stay with your sister 50mins Your sister 60Stay with your sister 60mins