Representing Sweden, Karlsmo is active in the Age of Empires II scene. Having completed 65 matches, Karlsmo has built up solid experience in Age of Empires II. The preferred ladder for Karlsmo is unranked.

Ranked play is not on Karlsmo's agenda—they have never queued for a ranked match. A 15.6% pick rate makes Khmer the top civilization choice for Karlsmo. In the flank position, Karlsmo has a 75.0% win rate across 16 games.