The PC version of Watch Dogs will require a 64-bit version of Windows in order to play, according to recently leaked system requirements. The specs were posted briefly on Ubisoft's Uplay store before being taken down, but a reader on NeoGAF was able to share them before they were removed. According to the latest Steam statistics, 24 per cent of Steam customers do not have a 64-bit operating system. The game weighs about 20 gigabytes and requires at least four gigabytes of RAM. Detailed requirements are posted below. Ubisoft has declined to comment on their accuracy. Basics Operating System: Windows Vista (SP2), Windows 7 (SP1) or Windows 8 Note that we only support 64 bit OSs. DVD-ROM: DVD-ROM Dual Layer Hard Drive Space: 20 GB Sound: DirectX 9.0c Compatible Sound Card with Latest Drivers Internet: Broadband connection and service required for multiplayer mode Watch Dogs PC minimum system requirements GPU: DirectX 11 graphics card with 1 GB Video RAM CPU: Quad core RAM: 4GB example 1 GPU: NVidia GTX 460 CPU: Intel Core2 Quad Q6600 example 2 GPU: AMD Radeon HD 5770 CPU: AMD Phenom X4 9750 Watch Dogs PC recommended system requirements GPU: DirectX 11 graphics card with 2 GB Video RAM CPU: Eight core RAM: 8GB example 1 GPU: NVidia GTX 560 ti CPU: Intel Core i7-3770 example 2 GPU: AMD Radeon HD 7850 CPU: AMD FX-8350 Eight-Core Watch Dogs PC 'maximum' system requirements GPU: Latest DirectX 11 graphics card with 2 GB Video RAM or more CPU: Latest Eight core or more RAM: 8GB or more example 1 GPU: Nvidia GTX 670 CPU: Intel Core i7-3930K example 2 GPU: AMD Radeon HD 7970 CPU: AMD FX-9370 Eight-Core Ubisoft has confirmed a Watch Dogs release date of November 19 in North America and November 22 in Europe for PS3, Xbox 360, Wii U and PC. PS4 and Xbox One will be available when the console's launch.