Representing Poland, jkeR.! is active in the Age of Empires II scene. jkeR.! has participated in 1775 matches across different game modes. In terms of game mode, jkeR.! favors ranked random map team.

jkeR.! has a clear affinity for Khmer, choosing it in 35.8% of their games. jkeR.!'s best win rate is 66.0% with Saracens in 47 matches. A 58.3% win rate on African Clearing makes it jkeR.!'s top map (60 matches).

jkeR.! excels in the pocket position: 50.2% win rate over 1220 matches. At 1103 in RM Team, jkeR.! has built up a respectable rating. jkeR.! has a win rate of 50.3% in RM Team (1691 games played).