Rockstar and Microsoft have something special planned in celebration of the launch of Grand Theft Auto: Episodes From Liberty City and The Ballad of Gay Tony. This weekend, anybody who wants to play both games as well as Grand Theft Auto IV over Xbox Live can do so for free.

Multiplayer mayhem in Liberty City will last from Friday, October 30, until Sunday, November 1. Rockstar North devs will also join in on the fun on Friday from 5 to 10 PM EST. On Saturday, there's a Game with Fame session from 3 to 5 PM EST featuring Aventura singer and composer Henry Santos Jeter.

Here are the Gamertags you need to look out for:

• Rockstar North devs: GwRockstar1 to 16
• Henry Santos Jeter: GwFHenryHH

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