There are differences, but any player of Everquest II or World of Warcraft will feel very familiar with the UI on LOTRO, which was naturally the intention of Turbine when they designed the game. … So the basic idea of a fantasy RPG is essentially compatible with Tolkien, regardless of the setting.

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Turbine and the ‘Lore’: Part 2. Game Mechanics | MMeOw | LotRO and …