Pro Evolution Soccer 2008 is a football management simulation game set in the fictional world of FC Harmony. The story revolves around the team's efforts to become the top league champions in the newly formed European Super League. Players take control of the squad, navigating the complexities of player morale, injuries, and team chemistry.
The gameplay focuses on realistic soccer tactics, with players able to control individual team members, making substitutions, and employing different formations. The game also features a career mode where players can manage their own teams, taking them from the lower divisions to the top tier.