The Red Cross says 600 million gamers may have committed war crimes and violated the Hague and Geneva conventions in virtual worlds.
The issue sparked debate this week at the 31st International Conference of the Red Cross.
"Exactly how video games influence individuals is a hotly debated topic, but for the first time, Movement partners discussed our role and responsibility to take action against violations of IHL in video games," the Red Cross wrote in its daily bulletin, via AdelaideNow.
"The aim for the ICRC is that they send the right signals to their hundreds of millions of players by rewarding respect for IHL and penalising violations," an Australian spokesperson said.
The Red Cross is still investigating, but if they find that the conventions have been breached, they may request that developers conform to international war laws in video games.