basically you can make "mods" that are actually games that you can play, they usally say which game they are a mod for in the desc

wait a free game

I wish the steam community wasn't so brain dead at answering questions. Ill rephrase the question so idiots can understand.

WHERE IS THE BUTTON TO CLICK TO OPEN THE FREAKING CREATION ON THIS WORKSHOP???????? HOW DO YOU ADD GAMES SPECIFICALLY WHAT TO CLICK AND WHERE TO FIND IT???????????????????? IVE BEEN TRYING FOREVER AND NO ONE KNOWS APPARENTLY. You open steam on windows your at your library screen THAN WHAT?????? You can click every option on literally every page and there is no way to add content or create content or upload content in any menu in any part of this entire Steam OS as far as i can see. It also lead me to really question where is this "community content" really coming from if there is no way for a normal user to participate???? This entire purchase was a waste because there is literally no online support at all on how to create or add or even find the tool/button to share or add content to the Sega Classics game workshop. This entire service would be alot more user friendly and popular if it wasn't impossible to find how to even use the thing. Also how can i trust anyone's content if i already know there is no real way to do what they are doing by checking literally every single option on every single page in the entire steam OS. All the content for this Sega Classics is potentially fraudulently sourced until its publicly proven how to participate and there even exists a real way after the process of elimination says otherwise. Google cant even answer the specifics of this question.

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=675208296