HALT serious game is a telltale serious game using realistic scenarios in order to engage users, mainly young athletes, in critical situations which will help them to be aware towards harassment and abuse in sport. There are four different scenarios taking place in different sports. Each scenario describes a unique story where the user has to rate certain behaviours and make the appropriate choices, in order to succeed and score as many points as possible. Finally there is also a fifth scenario which is a quiz to assess what the users have learned by playing the rest of the scenarios.