I understand you are FOSS fan, but games are not necessaryly Free/Libre/OpenSource.
You may consider content as tools though, which could be not in the eye of designers.
Peace, send me personnal message if you have something to tell me.
I did think about it 3 years ago. The Troducts and Tools
'Linux and GNU are sort of rebeling to Captilism, which ultimize the resources to archive a goal became gaint group in their field thus gain profit._ and now, the business have a symbol conversation to Entertainment, many new technology is just about entertaining and enclosed the consumers - while, Linux do not want the properity world, WE demand rar, mp3, DVD, Blu-ray, .doc, .h264 and whatever to be opened completely.
DRM, DVD, whatever type of the business, they do not like the theory of Linux become popular. Those software vendors care profit much, better hold own field to fight on Windows/Mac, which they are easily to be understood.
Any commercial properity software will see great sales under linux if there is alternative? Advertising is not signifcant as the effectiveness of build-in software promotion nature inside Linux distributions. OK people may believe companies rather than community - or this just don't make sense.
Linux is not acceptable by Entertainment Industry/ Cracker group like linux, however, they difference is obvious. Wether products or Tools are more important, Hackers love Tools more - this is Marxism - its better to output than import; yet stop the pace to it protect the profits.
No way to let the Video Games, Video/Audio open source as if they are Final Products, for consumers; only those Tools are goal to obtain in a "Libre/Open World".
Rough translation for now.
My thoughts, about 3 years ago.