Darkeden

DarkEden is an MMORPG, which requires the players to kill hordes of monsters, fight bosses and complete quests in order to make their character progress. This character progression varies according to the different races. Slayers only have to attack a monster or player to gain experience points. Vampires need to kill a monster or player and drink its blood to gain the maximum experience points available, whereas ousters just have to kill to gain these points.

For the same monster, ousters gain more experience points out of them than vampires do even when drinking their blood. Each of the races have a special advantage: the slayers sell the heads and skulls of monsters at the highest prices to npc, the vampires drop the best items out of the three races, and the ousters get experience points the quickest.

Vlad Tepes, Elizabeth Bathory, and Gilles de Rais, three of the twelve master vampires, form an alliance and enter the mountainous area of Helea, killing every person they find. They then attempt to awaken Lilith, the mother of all vampires, so that they can have her power. Opening her tomb does not awaken her, but it does create a cloud over Helea that blocks the sun, making Helea a dark eden for vampires.

The human world responded by isolating the region and sending in their militaries to try to rid the area of vampires.