With roots in United States, Keystone takes part in Age of Empires II. The match count for Keystone in Age of Empires II stands at 30. Keystone prefers the unranked game mode.

Keystone has chosen to skip ranked play, focusing on other game modes. The most common civilization choice for Keystone is Portuguese (96.7% pick rate). Keystone performs best in the flank position, with a 83.3% win rate over 6 matches.