IV/Play (pronounced ‘Four Play’) is a desktop oriented GUI front-end for MAME™. It was designed and commissioned by John IV as a familiar feeling alternative to MAMEUI. It has a narrow and particular feature-set, is keyboard driven, and utilises many of the navigation short cuts of MAMEUI. It is available as a combo x64/x86 app and can run on XP and Vista; though it is designed for Windows 7/8 with leveraged features like Jump List support. IV/Play is decoupled from setting MAME options directly in an effort to future proof against the continual core changes that impact MAMEUI. IV/Play requires .NET 4.0.