There are four new expansions coming from Rockstar Games for the hit Western Red Dead Redemption. One of them will bring zombies.

Plus... new animals? Red Dead Revolver characters? Anti-griefing somethings-or-other?

Rockstar outlined the four new paid expansions to Red Dead Redemption today, promising the next one for August and the following downloadable packs in the coming months. The DLC, which will be offered for PlayStation 3 and Xbox 360, expands the single player and multiplayer aspects of the game.

(The following summaries are quoted from a press release)

1) Legends and Killers Pack (Early August 2010, $10)

-New active map locations, characters and more
- 9 new multiplayer map locations — more than doubling the amount of territories in the multiplayer competitive modes
- 8 new multiplayer characters — play as characters from Red Dead Revolver
- Introducing a new projectile weapon: the Tomahawk, with corresponding challenges for single-player and multiplayer gameplay
- New achievements and trophies

2) Liars and Cheats Pack (TBD release date; $10)

- New competitive modes, multiplayer mini-games in Free Roam, and more
- Attack and Defend multiplayer competitive mode and challenges
- New multiplayer horse races, complete with mounted combat
- Play as the heroes and villains of Red Dead Redemption, as well as 8 additional multiplayer characters
- Multiplayer versions of Liars Dice and Poker from the single-player game
- Introducing a new weapon: the Explosive Rifle, with associated challenges available in single-player and multiplayer gameplay
- New achievements and trophies

3) Free Roam Pack (TBD release date; TBD price)

-Delve deeper into the world of Red Dead Redemption with
new modes, challenges and gang hideouts to discover
-New action areas and defensive placements
-Posse scoring and leaderboards
-New anti-griefing measures in Free Roam (Note from Stephen: Any theories on this, readers?)AKA lasso trains in MP

4) Undead Nightmare Pack ("Fall" 2010; $10)

- Ghost towns and cemeteries come alive in a West gone horribly wrong
- Brand new single-player adventure, challenges and quests
- 8 new multiplayer zombie characters
- Additional animals unleashed in the world
- New dynamic events and more

Rockstar has not released any screenshots of the new modes, so you'll have to guess what their Red Dead zombies look like. Interesting DLC strategy for this game. Rockstar's last big games, Grand Theft Auto IV, received two massive single-player-centric add-ons released more than a year after the game and offering over a dozen hours of gameplay and story for $20. With Red Dead, Rockstar is creating smaller portions of content and releasing them much closer to release, emphasizing an expansion of multiplayer more than single-player. Both plans were ambitious, showing that Rockstar is serious about post-release support. (But not so serious, folks — zombies!)