I tend to prefer GOG over Steam lately, mostly because of how shady Valve is at certain stuff. The first 2 of the 3 games you mentioned are available DRM-Free o

I tend to prefer GOG over Steam lately, mostly because of how shady Valve is at certain stuff. The first 2 of the 3 games you mentioned are available DRM-Free on their site. Playtesting takes time and money and it's entirely possible that just exporting the game for linux won't run perfectly, so I can see why some companies using the common game engines don't do it, I kinda wish they did, though. Wine runs a lot of Windows games properly.