Build SteamAPI.dll with visual studio

• Create a new DLL project in Visual Studio.
• New > Project.
• Templates > Visual C++ > Win32 > Win32 Project.
• Follow the wizard and pick the DLL Application Type.
• Add SteamworksPy.cpp to Source Files and steam_api.h from /steam/ folder to Header Files.
• Go to Project > Properties in the toolbar.
• Under C/C++ > Precompiled Headers, turn off Precompiled Header option.
• Under Linker > Input, add steam_api.lib or steam_api64.lib to Additional Dependenices.
• You may also want to add _CRT_SECURE_NO_WARNINGS under C/C++ > Preprocessor > Preprocessor Definitions.
• Clean and build.

Requirements

• steam_appid.txt - Stating your games app id or any other valid app id given the account owns a license
• steam_api library (.dll) and the corresponding steam_api.lib
• SteamAPI library (.dll)