Representing Poland, Dupstein is active in the Age of Empires II scene. Dupstein brings the experience of 772 played matches to each game. Dupstein dedicates most of their playtime to ranked random map 1v1.

Dupstein shows a preference for Cumans, picking it 17.8% of the time. Dupstein excels with Cumans, winning 60.9% of 133 matches. A 51.6% win rate on Arabia makes it Dupstein's top map (256 matches).

Dupstein excels in the flank position: 50.0% win rate over 38 matches. The RM Team rating for Dupstein is 875. Playing RM Team, Dupstein achieves a 46.8% win rate across 109 matches.