Canifis Slayer Tower

The Slayer Tower, also known as Viggora's Folly, is a tall granite tower located north-west of Canifis that was built by Viggora, a follower of Zaros, during the Second Age. There are three levels, each with increasingly dangerous Slayer monsters. All monsters within the building require a certain Slayer level to kill, the lowest being crawling hands at level 5, and the highest being abyssal demons at level 85 Slayer.

Players may also earn bonus Slayer experience depending on their progress on the Morytania Diary. The amount of bonus experience gained starts at 2.5% with the easy tasks completed, increasing by 2.5% for each set complete, up to 10% with the elite tasks completed.

Attempting to wait out a monster's 10 minute aggression timer can be done on a different floor. For example, the aberrant spectre aggression can be waited out at the top of the staircase leading to the 2^nd floor^[UK]3^rd floor^[US].

Note: Dwarf multicannons cannot be used here. If attempted, players will receive the message, "A strange magical force won't let you set up a cannon here."

During the Second Age, the tower's construction was overseen by General Viggora, who was at that time a follower of Zaros.^[1] The tower itself, constructed out of granite,^[2] was very large, full of large rooms, winding passageways decorated with assorted items. The most important of these were the gargoyles, which also included two unique gargoyle statues (who a Dorgeshuun assistant would call Dusk and Dawn due to how they were placed) at the rooftop with a Cloister Bell, intended to be rung during times of conflict.^[3] However, an unknown incident soon caused the tower to be renamed as Viggora's Folly, and it was eventually abandoned.

During the Third Age, at the time of the God Wars, Bandos sent the ourg general Snaarldor along with a group of Bandosians to the tower, desiring stronger soldiers after having been disappointed by the frailness of his goblins. Snaarldor took along Bandosian metal along with a tourmaline core and made his way to the tower's rooftop, performing a ritual at high noon with the core and metal, causing all of the gargoyle statues to animate.^[4] The two gargoyle statues at the top of the tower looked at Snaarldor, and Snaarldor believed he had won their loyalty and issued commands to attack Bandos's enemies, including Zamorak.^[5]

With Viggora having betrayed Zaros for Zamorak, the tower was filled with Zamorakian magic, causing the gargoyles to instead attack the Bandosian forces,^[6] with Dusk battling the ourg general mid-air. Snaarldor chopped off one of Dusk's wings before the gargoyle dropped him into the swamp below, and upon recovering, Snaarldor immediately ordered his remaining forces to retreat.^[7] The two gargoyle guardians then returned to their positions on their plinths, and the rooftop entrance would soon be locked, either by the Bandosians or future inhabitants.

A group of infernal magi are based in the tower, along with various other inhabitants, though their relationship to the tower is unknown.

• The Slayer ring can be used to teleport to the main entrance of the tower.
• Fairy ring code CKS lands you in the west of Canifis, just south of the tower.
• The Salve Graveyard Teleport (requires Arceuus spellbook) will take you to the graveyard just south of the tower.
• The Kharyrll teleport (requires completion of Desert Treasure I) (spell, tablet, POH portal) will take the player to Canifis, where it is a short run north-west.
• Go west after casting Fenkenstrain's Castle Teleport or using the tablet.
• The player can use the Ectophial to teleport to Port Phasmatys, and walk from there.
• You can walk from Varrock or the digsite through Paterdomus, though this is by far the longest route.

The basement can be accessed through a ladder on the ground floor^[UK]1^st floor^[US], near the entrance. Monsters here can only be killed on a Slayer task. Raulyn will stop players who attempt to attack monsters that are not on their Slayer task.

The basement is dimly lit, although a light source is not required to enter.

The ground floor^[UK]1^st floor^[US] is inhabited by only crawling hands in the west wing and part of the east wing. Banshees are found in the east part of the wing.

Near a group of crawling hands is a spiked chain requiring 61 Agility (can be boosted) to use. Using this spike will take the player to the 1^st floor^[UK]2^nd floor^[US], where the aberrant spectres are located. Do not climb up if you do not have a nose peg or Slayer helmet, or your stats will be drained by them if one aggros upon climbing up.

Outside the tower are two Agility shortcuts; some ivy to the west requiring 81 Agility (can be boosted), leading up to the start of the top floor, and a broken window to the east requiring 18 Agility (can be boosted) leading to the banshees and stairs to the second floor.

The 1^st floor^[UK]2^nd floor^[US] is inhabited by infernal mages in the north-eastern part of the wing, bloodvelds in the north-western part of the wing, and aberrant spectres in the south part of the wing. A large door separates the bloodveld and aberrant spectre room.

Another spiked chain can be found in the infernal mage room. This chain requires 71 Agility (can be boosted) to take players to the 2^nd floor^[UK]3^rd floor^[US], where the nechryael are located. The spiked chain in the aberrant spectre room can be used to climb back down to the ground floor^[UK]1^st floor^[US], requiring 61 Agility (can be boosted).

The 2^nd floor^[UK]3^rd floor^[US] is where the strongest monsters in the tower reside. Gargoyles inhabit the south-eastern wing, nechryael in the north-eastern and abyssal demons in the north-western wings.

Near the staircases of this floor lies a rooftop entrance and a magical chest. The rooftop entrance is locked, requiring a brittle key which permanently unlocks the entrance. This also unlocks the Grotesque Guardians boss fight. The magical chest nearby collects items lost on death during the fight, requiring 50,000 coins to reclaim them.

A spiked chain can be found at the nechryael room which takes players down to the 1^st floor^[UK]2^nd floor^[US], where the infernal mages reside. This requires 71 Agility (can be boosted).

Ivy can be found growing up the wall next to the entrance to the tower, which the player can use to climb right to the 2^nd floor^[UK]3^rd floor^[US], near the entrance to the Grotesque Guardians and the elite clue step.

• Prior to the addition of superior Turoths and Kurasks, the Slayer Tower was the only slayer area in Old School RuneScape that had superior variants for all of its inhabitants.
• Prior to the Client of Kourend update, players could only earn bonus experience if they have completed all the tasks of the Morytania Diary, but after the update was then scaled depending on the difficulty of the diary.
• Occasionally searching a chest in the Slayer Tower Basement will result in the message, "For a moment you think you've found Zamorak's teddy bear, but the chest is empty." This is a reference to the list Pontak gives you during The Fremennik Trials.
• Bringing a light source to the basement will remove the dim lighting effect.
• In RuneScape 3, Viggora built the tower to try and prove to the other non-human generals of Zaros that humans were more than just pets, but the other generals just laughed at him. He kept building until the ground beneath it failed and sank a good portion of the tower. The only general not to laugh was Zamorak, which resulted in Viggora joining his side. The Slayer Tower in RuneScape 3 received a graphical update reflecting this.