Kataal

I personally enjoyed Warhammer a LOT more than LOTRO. It's one of the few games to have PvP that actually entertains me (the others being the near perfect DAoC, and my beloved Ragnarok). I'd suggest doing a trial for both and then deciding, but Warhammer does have a re-enlistment campaign going now where you get a free 10 days, as well as some neat rewards if you subscribe afterwards (this is only if you've played before, though).

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