The King of Fighters Online was a MMORPG produced by DragonFly, which also produced Metal Slug Zero Online. Although DragonFly is a Korean developer, the game was released in Thailand.
This game brought together characters of the KOF series, from The King of Fighters '94 to The King of Fighters XIII, including brand new skins for all of them.
Sombat Banchamek, a Thai welterweight Muay Thai kickboxer of Kuy descent, was featured as a playable character under his ring name Buakaw Banchamek.