Steamworks SDK is distributed as a native DLL file (*.so when talking about Mac and Linux). In order to make it work with Unity you have to create a binding.
Copy the SteamWorks.Net SDK into your project's Assets/ folder. Open the steam_appid.txt in the root of your Unity project and replace 480 with your own App ID.
Unity Instructions · Open the Package Manager · Click the “+” (plus) button located in the upper left of the window · Select the “Add package from git URL…” option ...
You can use Steamworks.NET with Unity or non-Unity based .NET projects. A primary ... The Steam Community API is a set of APIs which allow you to utilize the ...