 All but two games in the series ran on the IGS' own PolyGame Master arcade hardware, the exceptions being "KOV The Seven Spirits", which was released on Sammy Corporation's Atomiswave, and the "Knights of Valour" 3D iteration, which was released online for PlayStation 4 and mobile.On 17 September 2014 at the Tokyo Game Show, IGS announced the release of a 3D installment of "Knights of Valour" for the PlayStation 4.A preview trailer was showcased and featured Japanese in-game character voices.