riot26, я использовал https://chrome.google.com/webstore/detail/web-snif...
нашел POST запрос на steamcommunity.com/login/dologin с POST Data:
password ULPPZThqsQHe2klFnhjztI2krgkPuKiV31wyAFuQ1e4T0UmmQpGdd1WWoi8ycICk5yexaOHOTcjapc+czsqtbsJ2yaOAZOFv3+0LS0WWOntEcnWY3PHXxxOtBt5BxPtPwj+HcZ/gl/FtiW58PtzTYzeA0TUI+rWD3HzrXiveCUczqZ6XOL1yPRWUgyoswfQBa+MiaQauB9Y/yS4s/YuF6Hkm2bwb7jRZUnsDbxjSHai8Qa3fDROhzj+DXv/gQ0DMEdVc6PAa1oOJnyOlLrmx3U8oiqzWA7VRnbA8sx5lAuAKPHyFqelQM+F9gEdfF4VHic2Aqigny5EDx58z5inYPg==
А пароль на самом деле такой m7)Qtf(/[ARk'z4MS}J9ZLM