GodotSteam is a game engine plugin and API wrapper that integrates the Steamworks SDK into the Godot engine. It serves as a bridge between the engine's scripting layer and platform services, allowing applications to access social features and platform-specific connectivity.
The project utilizes a C++ wrapper and a C-compatible foreign function interface to bind the Steamworks SDK. It includes a session manager that handles application ID initialization and enforces that the application is launched through the Steam client to validate ownership and session integrity.
The integration covers several functional areas, including cross-platform networking, user authentication for identity retrieval and account verification, and a polling-based system for processing SDK callbacks.