steam: Protocol‘Steam browser protocol’ on Valve Developer Community.
‘Command line options’ on Valve Developer Community.
steam://'' - Launch Steamsteam://'-dev' - Launch Steam in developer modesteam://'-console' - Launch Steam with console (enabled but hidden)steam://friends/add/<id>steam://friends/friends/<id>steam://friends/joinchat/<id>steam://friends/message/<id>steam://friends/players - Recently played withsteam://friends/settings/hideoffline - Toggle “Show Online Friends Only” settingsteam://friends/settings/showavatars - Toggle “Show Avatars” settingsteam://friends/settings/sortbyname - Toggle “Sort by Name” settingsteam://friends/status/awaysteam://friends/status/busysteam://friends/status/offlinesteam://friends/status/onlinesteam://friends/status/playsteam://friends/status/tradesteam://nav/downloadssteam://nav/games/details/<id>steam://nav/games/detailssteam://nav/games/gridsteam://nav/games/liststeam://nav/gamessteam://nav/mediasteam://nav/musicsteam://nav/toolssteam://open/activateproductsteam://open/bigpicturesteam://open/consolesteam://open/downloadssteam://open/friendssteam://open/games/detailssteam://open/games/gridsteam://open/games/liststeam://open/gamessteam://open/largegamesliststeam://open/mainsteam://open/minigamesliststeam://open/musicsteam://open/musicplayersteam://open/mymediasteam://open/newssteam://open/registerproductsteam://open/screenshotssteam://open/serverssteam://open/settingssteam://open/tools