Through Steamworks , Steam provides a means of server browsing for multiplayer games that use the Steam Community features , allowing users to create lobbies with friends or members of common groups . Steamworks also provides Valve Anti-Cheat ( VAC ) , Valve 's proprietary anti-cheat system ; game servers automatically detect and report users who are using cheats in online , multiplayer games . In August 2012 , Valve added new featuresincluding dedicated hub pages for games that highlight the best user-created content , top forum posts , and screenshotsto the Community area . In December 2012 , a feature where users can upload walkthroughs and guides detailing game strategy was added . Starting in January 2015 , the Steam client allowed players to livestream to Steam friends or the public while playing games on the platform . For the main event of The International 2018 '' Dota 2 '' tournament , Valve launched Steam.tv as a major update to Steam Broadcasting , adding Steam chat and Steamworks integration for spectating matches played at the event . Since then , it has been used for other events , such as a pre-release tournament for the digital card game '' Artifact '' , and for The Game Awards 2018 and Steam Awards award shows
The Game Awards 2018
The Game Awards 2018
Steam (software)