Based in United States, KOSTERK competes in Age of Empires II. KOSTERK's profile shows 1197 completed matches in Age of Empires II. KOSTERK has a clear preference for the ranked random map team ladder.

KOSTERK wins most often with Wu—56.7% in 30 games. On Black Forest, KOSTERK wins 61.8% of the time (212 matches). flank is KOSTERK's strongest position, boasting 53.0% wins across 317 games.

KOSTERK plays at a 1101 rating in RM Team. KOSTERK's RM 1v1 record stands at 50.0% wins over 24 games.