For general feedback about the game.Steam Support
Visit the support site for any issues you may be having with the game or Steam.
Are you great at making fun, addictive TF2 maps? Do you have no idea how to make a map, but you like playing on them? Are you only vaguely aware of what maps are and prefer to just walk in a single direction until you find what you're looking for? Introducing the Maps Workshop Beta, a place for all three of you to upload, enjoy or just learn about the existence of maps!
The Maps Workshop Beta is an in-development one-stop hub where mapmakers can instantly upload and get feedback on their maps. Simply head over to the in-game Workshop tool and click on the new Maps button. If you're just in the market to play new maps, you can now browse the Maps Workshop and up-vote and subscribe to maps you like—or just connect to a server running a Workshop map and it will download automatically from the Workshop.
And remember, this is a Beta that we'll be working to improve. The TF2 team is incredibly appreciative of your feedback.