steam
I've got some old (and some new) games on Steam that fully/partially support controllers, but their devs haven't listed controller support in the steam store.
Is there any way to force these games into the controller support list? Making a separate category would be a possible work around, but I already categorize my games so this would be far from optimal.
As of the latest update to Steam, you can now PERMANENTLY remove games from your Steam account!
You can browse over your entire library and choose which software you'd like to permanently get rid of. But note, once you have removed a game from your library, it's gone permanently, so if later down the road you'd like it back you'll have to purchase it again.
You'll also need to watch out for some other issues. The thread linked above has noted that if the game is part of a bundle (HumbleBundle, etc.), removing one game from a "package" may require you to remove all the games from that specific bundle.
There is currently a way to filter on Controller Support in Library mode by using the Advanced Filtering dialog:
Best Answer
Create a new catagory of your own, this can be looked at in big picture and you can choose whatever games you like in it even ones you have modded for controller support or third party games.
to do this right click on the game in your libary and click add catagory you will get a screen like this
Then give it a name e.g. "Controller Friendly"
then when you look in your library they will be seperated like this
and you can select specific catagories in big picture by clicking the drop down at the top shown in the picture below