Representing Poland, Dupstein is active in the Age of Empires II scene. Dupstein brings the experience of 774 played matches to each game. Dupstein dedicates most of their playtime to ranked random map 1v1.

Dupstein shows a preference for Cumans, picking it 18.0% of the time. Dupstein excels with Cumans, winning 60.0% of 135 matches. A 51.6% win rate on Arabia makes it Dupstein's top map (256 matches).

Dupstein excels in the flank position: 48.7% win rate over 39 matches. The RM 1v1 rating for Dupstein is 866. Playing RM Team, Dupstein achieves a 45.9% win rate across 111 matches.