Assassin's Creed IV: Black Flag
Assassin's Creed IV: Black Flag Wiki - System Requirements
Minimum
OSWindows Vista SP2 / 7 SP1 / 8 (32/64-bit)
ProcessorIntel Core2Quad Q8400 / AMD Athlon II X4 620
Memory2 GB
GraphicsNVIDIA GeForce GTX 260 / AMD Radeon HD 4870 (512MB VRAM, Shader Model 4.0+)
Storage30 GB
Recommended
OSWindows Vista SP2 / 7 SP1 / 8 (32/64-bit)
ProcessorIntel Core i5-2400S / AMD Phenom II X4 940
Memory4 GB
GraphicsNVIDIA GeForce GTX 470 / AMD Radeon HD 5850 (1GB VRAM, Shader Model 5.0)
Storage30 GB
Source: Official Steam store page, confirmed unanimous across multiple independent sources
Confirmed unanimous across multiple independent sources including the official Steam listing. DirectX 11 required. Not officially supported on macOS or Linux, though community compatibility layers (Proton, Wine, Boot Camp) have been used successfully by some players. Requires Ubisoft Connect DRM.