Kingdom Hearts χ [chi] is a Kingdom Hearts game that is exclusive to PC browsers. The game is free to play, but includes additional purchasable items. Set during the events of the Keyblade War, it hosts simple 2D graphics and allows all players to become Keyblade wielders. The closed beta test for Kingdom Hearts χ [chi] was held from March 22 to March 25, 2013. An open beta test started on the 8th of July and concluded with the official launch of the game service on the 18th of July.