Steam Library Checker for Instant Gaming

Steam Library Checker for Instant Gaming is the ultimate shopping companion for PC gamers. It effortlessly syncs with your collection to ensure you never accidentally buy a game you already own. (Note: Your Steam profile must be set to public). When you browse deals on Instant Gaming, this extension automatically cross-references your Steam library and visually highlights games already in your collection. Spot your owned titles instantly and find the best new game discounts without the guesswork or duplicate purchases! 🌟 Key Features: - Dynamic Page Scanning: Instant Gaming loads new game deals as you scroll. The extension dynamically monitors the page to check and highlight newly loaded titles instantly. - Seamless & Simple Setup: No complicated configurations. Just enter your Steam User ID / SteamID64 once in the extension popup to sync your library. - 100% Lightweight: Runs efficiently in the background without slowing down your browser. 🎮 How to Get Started: - Install the extension. - Click the extension icon to open the popup. - Enter your Steam User ID (SteamID64). - Browse Instant Gaming normally—your owned games will automatically be marked! 🔒 Privacy & Safety First Your privacy is our top priority. - This extension only uses your Steam ID to fetch public library data. - Your Steam ID is stored strictly locally inside your own browser. - No browsing history or activity is tracked, monitored, or saved. - No personal data is ever shared, tracked, or sold. - The extension code only activates and runs on official Instant Gaming store pages. 🛠️ Permissions Explained: - activeTab: Allows the extension to safely update and highlight games on the active Instant Gaming page. - scripting: Used to visually mark your owned Steam games directly on the store layout. - storage: Securely saves your Steam user ID locally in your browser so you don't have to re-enter it. Disclaimer: This extension is an independent developer project and is not affiliated with, authorized, maintained, or endorsed by Steam, Valve Corporation, or Instant Gaming.