This addon adds a button which functions pretty much the same as the existing Facebook login button. Features: Prepopulated username from user's Steam name. Downloads and uses Steam avatar for new users. Integrates with my Steam Identity Service addon to populate Steam ID for both new and existing users. As with the existing Facebook integration, supports both new and existing users. Installation: Install Steam Identity Service Upload contents of upload folder to your forum root Install addon-SteamLogin.xml file Edit login_bar_form template - Add: < PHP: xen:include template="dark_steam_login_button" /> Before: < PHP: /xen:contentcheck> Updated: Uploaded 1.1 Patch. Sorry it took a while. Install SteamLogin.zip first, then overwrite files with SteamLogin_1.1_patch.zip. Make sure you install the SteamLogin.zip FIRST!