Ring Heroes  -  All maps in Skirmish and Multiplayer mode have Gollum cloaked on it. When you find Gollum, kill him and you will get the ring. Take it back to your fortress and have the troop that is carrying the ring enter the fortress in order to recruit a Ring Hero for 9,000 resources. The Ring Hero does not use any command points. Men, Elves, and Dwarves can recruit Galadriel. Mordor, Isengard, and Goblins can recruit Sauron. The easiest way to get the ring is to let an enemy find Gollum then kill them after they obtain the ring. The only way to stop them before they reach their base is to chase them down with a mounted unit, have a created hero teleport into their path, or to summon allies into their path using a power.

Unlockables

Achievements  -  Complete each of the following achievements below to get the allotted gamerscore.

Assault Dol Guldur (30) Complete Good Dol Guldur with all bonus objectives.

Captains of the West (25) Complete Good Campaign.
Capture and Hold (15) Win 1 Capture and Hold game.
Capture them all!!! (30) Win 10 Capture and Hold games.
Cleanse the Ettenmoors (10) Complete Good Ettenmoors with all bonus objectives.
Clear the High Pass (5) Complete Good High Pass with all bonus objectives.
Commandeer the Old Forest Road (10) Complete Evil Mirkwood with all bonus objectives.
Cover the Lands in Darkness (25) Complete Evil Campaign.
Crush Rivendell (30) Complete Evil Rivendell with all bonus objectives.

Defend Erebor (20) Complete Good Erebor with all bonus objectives.
Defend Rivendell (5) Complete Good Rivendell with all bonus objectives.
Demolish the Grey Havens (5) Complete Evil Grey Havens with all bonus objectives.
Destroy Lothlorien (5) Complete Evil Lorien with all bonus objectives.

Entrepreneur of Middle-earth (30) Win 10 Resource Race games.

General (30) Win 10 Versus games.
Good Practice (5) Win 1 Single Player Skirmish game.

In need of a lesson (0) Lose 10 Multiplayer matches in a row.
Istari Power (5) Purchase first player power.

King of Kings (30) Win 10 King of the Hill games.
King of the Hill! (15) Win 1 King of the Hill game.

Middle-earth Financier (15) Win 1 Resource Race game.
My Heroes are better than yours (30) Win 10 Hero Vs Hero games.
My Heroes!!!! (15) Win 1 Hero Vs Hero game.

Pillage Erebor (20) Complete Evil Erebor with all bonus objectives.

Ravage Fornost (10) Complete Evil Fornost with all bonus objectives.
Reclaim the Blue Mountains (10) Complete Good Blue Mountains with all bonus objectives.
Rescue Celduin (15) Complete Good Celduin with all bonus objectives.

Scour the Shire (10) Complete Evil Shire with all bonus objectives.
Secure the Grey Havens (10) Complete Good Grey Havens with all bonus objectives.
Sergeant (15) Win 1 Versus game.
Servant of the Secret Fire (80) Complete Good Campaign without a Hero dying.
Servant of the Shadow (80) Complete Evil Campaign without a Hero dying.

The Dragons of Withered Heath (15) Complete Evil Withered Heath with all bonus objectives.
The Hobbit and the Troll (50) Win a game against someone 20 places higher than you.
Try a tutorial (0) Lose to someone ranked 20 places below you.

Unlockable Heroes

Avatan Win 10 capture and hold games.

Brerthor complete the whole good campaign.

Celebrim Win 10 resource race games

Felek Win 10 hero vs. hero games
Fhaleen Win 10 king of the hill games

Hadhood complete first level of good campaign with all bonus objectives.

Idrial complete level eight of good campaign with all bonus objectives.

Krashnack complete level one of bad campaign with all bonus objectives.

Maur complete level four of the good campaign with all bonus objectives.
Mektar complete good campaign with no heroes dying.

Ohta Win 10 versus games.
Olog complete level eight of the bad campaign with all bonus objectives.

Thrugg complete level four of the bad campaign with all bonus objectives.
Tumna complete the whole bad campaign.

Urulooke complete evil campaign with no heroes dying.