Game Bans system is now available on Steam but don’t worry, those bans have to be requested by the developer. This allows the game makers to maintain their own games in ways that Steam couldn’t. Developer is also likely to have the time and resources to ban cheaters in hackers from its own title. It takes the burden of ban appeals off Valve’s Steam Support team.
There are some concerns though, because you know some devs have horrible history of community management on Steam.