Representing Japan, grumbleske is active in the Age of Empires II scene. Age of Empires II records show 19 matches for grumbleske. Most of grumbleske's games take place on the unranked ladder.

Ranked play is not on grumbleske's agenda—they have never queued for a ranked match. Mongols is the go-to civilization for grumbleske, making up 63.2% of their picks.