|Health points||100 ( × 50)|
The Twilight Lich is a boss monster added by Twilight Forest. It is found at the top of the Lich Tower, and will spawn as soon as the player reaches the top floor. The fight with the Twilight Lich goes through three stages. The Twilight Lich has 100 ( × 50) health points. The Twilight Lich can teleport when in danger, but will not leave the top room unless the player does. The Twilight Lich can drop many items, including enchanted Golden armor pieces, enchanted Golden Swords, Ender Pearls, Bones, and will always drop a Lich Trophy. It will also drop one of three scepters: the Zombie Scepter, the Scepter of Twilight, and the Scepter of Life Draining.
During the first stage the Lich is surrounded by damage-immune shields and wields a Scepter of Twilight and will shoot Ender Pearl projectiles, as well as Fireball projectiles. The Ender Pearl projectiles can be reflected back at the Lich, removing a shield for every pearl the Lich is hit. In addition, the Twilight Lich's shields can also be removed by firing projectiles from a Scepter of Twilight at it. The fireball projectiles will explode on impact. Additionally, the Lich has two Twilight Lich Shadows that cannot be harmed in any way, but will shoot these projectiles at the player alongside the Lich. These projectiles deal 6 () points of damage on impact.
In the second stage the Lich wields a Zombie Scepter and will summon Lich Minions or Zombies until there is no charge remaining in the Scepter. Once this stage begins both of the Twilight Lich Shadows will disappear for the rest of the fight. At this stage the Lich becomes vulnerable to attacks, but it is not recommended due to the Lich Minions that are constantly spawning. The Lich Minions deal 4 () points of damage on each attack.
Once the Zombie Scepter is depleted, the fight progresses to its third or final stage and the Lich will wield a Golden Sword, fighting the player in hand-to-hand combat. It will deal 9 () points of damage on each attack.