Grand Chase Classic logo.

Grand Chase Classic, advertised by KOG Studios as GrandChase Classic, is an international service for Grand Chase. It has been self-published by the game's developer, KOG Studios, on Steam since 2021. PlayPark has been an official distributor of the Steam version in the SEA region since 2024.

KOG Studios revived the game by self-publishing it on Steam in 2021 under the name "GrandChase Classic". Three years after its release, PlayPark partnered with KOG and began distributing and marketing the Steam version of the game in the Philippines, Indonesia, Singapore, and Thailand on January 1, 2024. This includes allowing a PlayPark account to log onto the Grand Chase Steam service.