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Rockstar details RDR's Land Grab Mode

Comes with Undead Nightmare add-on.

In Red Dead Redemption's Land Grab Mode – set for multiplayer free roam as part of the intriguing Undead Nightmare add-on – players fight for control over a section of land in one of seven different towns in the open world epic's online game world.

When one of seven posts marked Land Grab is activated, a countdown triggers and players are given control over a radius of territory, Rockstar revealed on its website.

In order to lay claim to the land, you must remain inside the radius and defend against oncoming enemies. Leaving at any time will surrender your claim, as will being killed by another player.

While the land grab is active you'll add to the XP pot awarded at the end of the match. But watch out for sneaky enemy players – all they need to do is activate the post themselves to take control.

All players can participate in an active Land Grab, Rockstar said, but only players that have the Undead Nightmare Pack can initiate a game. Screens showcasing the mode are below.

The Undead Nightmare add-on will release next week on PlayStation Network and Xbox Live and set you back £7.99 or 800 Microsoft Points (£6.80 / €9.60).

The new campaign sees you attempt to rid the land of a zombie plague. Expect new weapons, new characters and new locations.

Undead Nightmare is the fifth DLC pack for the open world epic, following Outlaws to the End, Legends and Killers, Liars and Cheats, and Hunting and Trading.