The Steamworks SDK is only required to upload your content to Steam, everything else provided through the SDK is optional. Getting Started (Steamworks Documentation)
Steamworks is the set of tools and services built by Valve that help you configure, manage, and operate your game on Steam. Steam, The Ultimate Online Game Platform Steamworks.rar
: Files (like DirectX or Visual C++ runtimes) that many games require to run properly on Windows. The Steamworks SDK is only required to upload