Ok, this is specifically to 2 games that I love to play. Dawn of War : Dark Crusade Dawn Of War : SoulStorm. Ok, my main Linux PC is an AMD A10-7890K. using an nVidia 970 GFX Card. Recently I upgraded my Hackintosh, but, when I got the Mobo and CPU ( Intel I5-6600K ) I threw Linux onto it for a giggle cos its a decent setup, and when I threw steam onto it, Isaw that Dark Crusade and SoulStorm were both in my list. ( On my main Linux PC, they are NOT? ) Now, that setup has now gone over to be my Hackintosh and so the previous Hackintosh, I have also put Linux onto that, ( I have been toying with Mint 19 and Cinnamon, but I am currently on Ubuntu MATE, but added the Cinnamon Desktop ) and again, I see these Dawn of War Games on that, and I can play them just fine too, but, when I go over to my main Linux PC, they are not there? Now, Dawn Of war 2 and 3 have been supported by Linux for a short while now, and they are there just fine. But Dark Crusade and Soulstorm, appeared in both the I5 setups, but I just cannot get them to come up in the AMD one? The AMD has nVidia 970 Graphics, the I5-6600K was using onboard INTEL graphics and the I5-2500K is using an ATI 7700 Stubby card. I have tried the ATI card and even using the onboard of the APU in the hope that it appears, and I have tried various options of how top install STEAM, but this is simply not having it? What I have also done, is put in a completely new SSD and HD into both the I5-2500K and the AMD A10 and done a fresh install of UBUNTU MATE and then added Cinnamon to them, and yes, the Intel shows up wth Dark Crusade, and the AMD does not? There MUST be a reason for this? Or am I going nuts? Anyone have any clues?