Nowadays, eGames and games are applicable to different scenarios for conflict resolution. Which games are more recommend for experiments in primary, secondary schools or university levels?
According to the authors, the software trains students in emotional competencies that will allow them to resolve conflicts more assertively. The research concluded that the Happy Emotional Education Program "contributes to the management of emotions and the absence of negative affect or anxiety in a significant way" (Filella et al., 2018, para. 1).
You can pick a 2-player game and turn it into a 4-player game. So, conflicts will emerge (and hopefully be solved!) within each team. For instance, think of chess being played by two teams of two players each: a lot of dialogue will be required to set who will decide the strategy, who will move the pieces in the board etc. I'm eager to help building this, please contact me if you're interested.
Games like Detroit Become Human or Heavy Rain, are good in decision making, and let the players to interact with the environment of the game.
Other games like MOBA´s for example: League of Legends need the cooperation of the team member to reach the objectives, so this kind of games could be useful for your purpose.