Krita is a replacement for Photoshop. You can load PSDs with layers, with high colors. Way better than GIMP.
WPS Office is a fantastic replacement for Microsoft Office. Even better than Libra Office, but Libra Office is improving fast. http://wps.com/linux/
Steam is on Linux
Unity is now on Linux.
Unreal Engine for Linux: https://www.unrealengine.com/b…
Visual Studio now works on Linux: https://code.visualstudio.com/…
.net was opened sourced, which is a huge boon for Mono.
We also have Docker containers being integrated into system such as Ubuntu with Snappy. I also suggest checking out Deepin Linux. I am waiting for 2015 version as there were a couple of bugs in their system they are working out.
Note: Flash is basically dead with Firefox and Chrome making the transition to remove it. That means video is switching to HTML5. I don’t know if you get the same screen tearing with HTML5, but it seems like a good thing.