There is more than a single kind of Steam DRM (before even mentioning all the 3rd parties they allow) : https://www.gog.com/forum/general/how_to_run_steam_game

There is more than a single kind of Steam DRM (before even mentioning all the 3rd parties they allow) : https://www.gog.com/forum/general/how_to_run_steam_games_offline_forever_tutorial/page1 https://www.gog.com/forum/general/how_to_run_steam_games_off...