Concerning contentious topics, researchers have identified a rise in belief polarization linked to significant negative consequences for society, emphasizing the necessity for effective interventions. Despite the potential of methods like addressing filter bubbles, a critical challenge persists—individuals must actively seek and engage with these interventions. An innovative approach to address this challenge is gamification. Therefore, this study explores whether integrating gamification into a depolarization intervention can boost engagement and, consequently, enhance effectiveness. An established depolarization intervention method was utilized, presenting well-balanced arguments for and against the contentious issue of implementing a general speed limit on German Highways. A total of 269 participants (age: M = 44.86; SD = 14.37, 135 female) were assigned to one of three interventions: a traditional text-based intervention (reading balanced arguments on the contentious topic), a gamified intervention (engaging with these balanced arguments in a gaming context), or a control intervention (reading arguments on an unrelated topic). The study results did not reveal a general effect of the traditional text-based intervention nor an enhanced impact of the gamified intervention on depolarizing opinions. However, the gamified intervention led to an increased number of read arguments and improved knowledge about the topic, highlighting the independence of knowledge and opinions. Furthermore, political orientation influenced the depolarization effect, with right-leaning individuals demonstrating a more pronounced depolarization of their opinions. In conclusion, in the presence of pre-existing polarization and a politically much-discussed topic, the effect of imparting knowledge as a depolarization strategy is limited, suggesting the need for alternative approaches.