Let’s be upfront: The only official downloads are full-sized (≈18 GB for standard, ≈14 GB for the Complete Edition after patches).
For a smoother experience, consider the recommended system requirements: Download Watch Dogs 1 For Pc Highly Compressed High
The original installation size for Watch Dogs on PC is approximately . However, highly compressed "repack" versions can significantly reduce the initial download size: Watch_Dogs™ on Steam Let’s be upfront: The only official downloads are