Representing Czechia, Kubajss is active in the Age of Empires II scene. Kubajss has competed in 21 Age of Empires II matches so far. Kubajss focuses mainly on unranked matches.

Kubajss prefers non-competitive gameplay and has never played ranked. Among all available civilizations, Kubajss picks Khmer most frequently at 14.3%. Kubajss wins 100.0% of matches when playing as flank (1 matches).