Rolling out with the upcoming demo of Valve’s Left 4 Dead, Steam Cloud is a set of services announced back in March that will save various game settings on the server, so gamers will be able to easily transfer games to new machines with all of their tweaks and configurations intact. You’ll be able to log into another system, log in Steam, and your game settings will automatically download to the new system. “For some time now, Steam has allowed gamers to log on from any computer in the world and access their applications. This also makes it easy to upgrade a PC without worrying about losing your games,” said Gabe Newell, president and co-founder of Valve. “Steam Cloud is a natural extension of the portability Steam affords gamers and developers, and we intend to expand its feature set as it is used in Left 4 Dead and other games coming to Steam.”

The first release of Steam Cloud will support the saving of keyboard and mouse configurations as well as multiplayer settings. Valve is making Steam Cloud freely available to developers and publishers, and will also be adding support for the services to their back catalog. Hit the jump for more details.