Well the complements of steam are the OS and hardware. So commoditizing them increases sales. https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ htt

Well the complements of steam are the OS and hardware. So commoditizing them increases sales. https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ "A complement is a product that you usually buy together with another product. Gas and cars are complements. Computer hardware is a classic complement of computer operating systems. And babysitters are a complement of dinner at fine restaurants."