↑Chiang, Oliver (February 9, 2011). "The Master of Online Mayhem". Forbes. مؤرشف من الأصل في March 7, 2017. د لاسرسينېټه March 6, 2017. الوسيط |CitationClass= تم تجاهله (مساعدة)
↑"Privacy Policy Agreement". Valve. مؤرشف من الأصل في December 31, 2016. د لاسرسينېټه January 1, 2017. Payment processing related to Content and Services and/or physical goods purchased on Steam is performed by either Valve Corporation directly or by Valve’s fully owned subsidiary Valve GmbH on behalf of Valve Corporation depending on the type of payment method used.الوسيط |CitationClass= تم تجاهله (مساعدة)