Can Playing Violent Video Games Cause Aggression in Adults?

Three men play a video game in a sunny room. The role of video games (particularly violent ones) in aggression is an ongoing subject of scientific debate. Most research has focused on the effects of video games on children and adolescents. A new study published in Molecular Psychology analyzes how video games affect adults. The study found daily play of violent video games is not linked to long-term aggression in adults.

According to the study’s authors, these findings contradict the 2015 American Psychological Association (APA) report on video games. The APA review found a link between violent video games and increased aggression. Yet many critics argued the report was based on flawed research and a poor understanding of the role video games have in the lives of young people.

Research published in 2016 suggests parents and kids can benefit from playing video games together. A 2018 study found violent video games do not prime for aggressive behavior.

The Long-Term Effects of Violent Video Games

Many previous studies suggest violent video games may temporarily make people more aggressive. These studies have mostly looked at the minutes immediately following a play session. To significantly increase the risk of violent behavior, video games would need to produce longer-lasting effects.

To weigh the long-term effects of violent gameplay, researchers analyzed 77 participants. The average participant age was 28. About half of recruits were female. While participants knew the study was about video games, they did not know what researchers were testing.

The study’s authors divided the participants into three groups. Twenty-five recruits played Grand Theft Auto V each day for two months. Critics have long argued that Grand Theft Auto is too violent and that the violence is too realistic. Twenty-four participants played The Sims 3 daily for two months. The Sims is a simulation game that contains little or no violence. Twenty-eight participants played no video games for two months.

Before the two-month period, researchers administered 208 tests. These tests measured psychological factors such as anxiety, impulse control, aggression, and empathy. At the end of the play period, the team repeated the tests. The analysis controlled for sex and age, since research suggests these factors can influence aggression.

Three of the 208 tests showed changes that might result in more aggression. The study’s authors dismiss these changes as coincidental. Overall, they found no significant changes in aggression between groups. In fact, they found no changes in any of the tested variables.

The researchers found no connection between violent games and aggression. Nor were these games linked to decreased empathy or impulse control. The study challenges the notion that violent video games cause lasting psychological harm.


  1. Daily dose of violent video games has no long-term effect on adult aggression, researchers find. (2018, March 14). ScienceDaily. Retrieved from
  2. Kuhn, S., Kugler, D. T., Schmalen, K., Weichenberger, M., Witt, C., & Gallinat, J. (2018). Does playing violent video games cause aggression? A longitudinal intervention study. Molecular Psychiatry. Retrieved from

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  • Mason

    April 10th, 2018 at 11:38 AM

    To all the people who believe that Video Games cause violence: Thats a bit like saying “There is more crime in the summer, more ice cream is sold in the summer, therefore ice cream causes crime.” That not how legitimate research works!

  • RandomStudent

    March 9th, 2021 at 7:27 AM

    I’m just looking for proof that video games cause violence for an essay dude, this is literally the opposite. Maybe I’ll show this to the teacher and prove that she’s ridiculous.

  • technology

    June 1st, 2023 at 5:47 AM

    But the effective instructor occupies another role as well, as a supervisor of students, and plays a role in motivating, encouraging, evaluating, and developing students For any topic there will always be a small percentage of students with the necessary background, motivation.

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