Linux is a complement to Valve: https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ "Com

Linux is a complement to Valve: https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ "Commoditize your complements." In general you open source / lower price (to free if possible) your complements. Pretty much all companies do this.