Ntreev Soft (Korean: 엔트리브 소프트) was a South Korean video game development studio primarily known for the development of the online multiplayer golf game PangYa as well as the anime-styled MMORPG, Trickster Online.

The company first split off from the South Korean game developer Sonnori [ko] in late 2003, and had the majority of its shares bought by iHQ in 2005. Those shares were transferred to the holding company of SK Telecom after they purchased the majority shares of iHQ in 2007, making SK Group the Parent company of Ntreev Soft until 2012.^[1]

Ntreev Soft initially used to host the North American version of the MMORPG Grand Chase before transferring the rights to KOG's North American branch KOG Games, then known as Kill3rCombo, in 2010.

On 8 July 2011, NCSoft Corporation started a contract with SK Telecom to acquire Ntreev Soft Co., Ltd. from SK Group because NCSoft has never succeeded in launching casual online games. On 15 February 2012. NCSoft acquired Ntreev Soft from its parent company, SK Telecom.^[2]

Ntreev Soft closed down on February 15, 2024 after an attempt of reorganization by it's parent company NCsoft and being run on deficit for 11 years.