Brandcliff House is affiliated with Mind Sports South Africa (MSSA) and competes in the South African Inter-School Online League. The school first started competing in inter-school matches in 2015. With the growth of competitive online gaming, the number of students that play online games has also increased.
In 2019, Brandcliff House received sponsorship of eSports gaming headsets from the Deal Magic team. Deal Magic is a supplier of premier gaming equipment. For more information, please visit their website and Facebook page.
In past years, Brandcliff House has fielded teams competing in games on both console and PC platforms. The school has had strong teams playing DOTA 2, League of Legends, StarCraft 2, Call of Duty, FIFA, and Counter Strike (CS:GO) (all popular international eSports titles).