What problem does it solve? Adding cloud save support to a Steam game involves choosing between Auto-Cloud file syncing and manual SDK calls, configuring per-platform paths, and handling sync conflicts and quotas, which is easy to get wrong without guidance. ## Core Features & Use Cases - Auto-Cloud Configuration: Set up file-based cloud syncing via the Steamworks Partner site or a steam_autocloud.vdf file with per-platform roots like WinAppDataLocal and LinuxHome. - Manual Cloud Storage: Use ISteamRemoteStorage API calls (FileWrite, FileRead, GetQuota, FileDelete) with code examples in C++, C# (Steamworks.NET), and GDScript (GodotSteam). - Conflict Resolution & Quotas: Handle sync conflicts between machines, check cloud quotas, and avoid pitfalls like endianness issues and case-sensitive filenames. - Use Case: A developer with a roguelike storing run_data.json in AppData wants cloud saves; the Skill recommends Auto-Cloud, provides the VDF config for Windows, Linux, and Mac, and suggests appropriate quota limits. ## Quick Start Ask the agent to add Steam Cloud save support to your game, providing your App ID and whether you prefer Auto-Cloud or manual SDK integration.