Boss

A boss is a powerful, usually unique monster that is fought to accomplish an objective, be it the advancement or completion of a quest or minigame, or as part of a team player-versus-monster event. Many quests feature boss fights at their climaxes; such bosses are often the main antagonists of the quests or quest series, or are somehow related to the main antagonist(s). Some monsters that are commonly referred to as bosses are very powerful monsters that reside in multi-combat areas; these monsters are commonly fought by teams of players in search of highly valuable drops. Many bosses have extremely high combat levels, and most of the strongest monsters in the game are bosses. With the exception of Bryophyta and Obor, bosses are exclusive to members.

Dwarf multicannons often cannot be set up in the areas of many bosses, and many are immune or resistant to other effects, such as freeze and poison. Others may have different restrictions; for example, Prayer cannot be used during the fights with the final bosses of Recipe for Disaster. Most bosses (e.g. bosses like the Corporeal Beast) also reside in a multi-way area; very few reside in single-way areas or instances.

Excluding minigame and quest bosses, each boss has its own hiscore table, tracking the players with the most kills, or raid completions in the case of raid bosses. Each of these bosses (or raids) also has its own set of combat achievements and, with the exception of the Deranged archaeologist, each one also has unique drops in the collection log. Most bosses will generate a message upon kill telling the player what drop(s) they have obtained. For example, if players are at General Graardor and kill him (and drops Bandos tassets), a message will appear in the game box saying "Player name received item: Bandos tassets".

List of bosses

Wilderness bosses

The following world bosses are specifically located within the Wilderness, where players may attack each other. The one exception is the King Black Dragon: his lair where the fight takes place is not located in the Wilderness, but it can only be accessed through Wilderness, and is thus still considered risky.

Boss		Level	Hitpoints	Attack style(s)	Location	Drops
Nex		1001	3400	[[]] Melee (crush) [[]]	West of Demonic Ruins East of Mage Bank Royal Donator Zone	Nexling  Ancient godsword  Zaryte vambraces  Torva full helm  Torva platebody  Torva platelegs  Ancient blood ornament kit
Vet'ion		454	255	Melee (slash) [[]] (Vet'ion only)	Skeletal Tomb Vet'ion's Rest Royal Donator Zone	Vet'ion jr.  Skull of vet'ion  Voidwaker blade
Venenatis		464	850	Melee (stab) [[]] [[]]	Web Chasm Silk Chasm Royal Donator Zone	Venenatis spiderling  Treasonous ring  Dragon pickaxe  Dragon 2h sword  Fangs of venenatis  Voidwaker gem
Callisto		470	1000	Melee (crush) [[]] [[]]	Hunter's End Callisto's Den Royal Donator Zone	Callisto cub  Tyrannical ring  Dragon pickaxe  Dragon 2h sword  Claws of callisto  Voidwaker hilt
Chaos Fanatic		202	225	[[]]	West of the Lava Maze	Pet chaos elemental  Odium shard 1  Malediction shard 1
Crazy archaeologist		204	225	Melee (crush) [[]]	Dareeyak ruins	Odium shard 2  Malediction shard 2  Fedora
Scorpia		225	200	Melee (crush)	Scorpion Pit	Scorpia's offspring  Odium shard 3  Malediction shard 3
King Black Dragon		276	255	Melee (stab) Dragonfire (long-ranged)	King Black Dragon Lair (Optionally instanced)	Prince black dragon  Kbd heads  Dragon pickaxe  Draconic visage
Chaos Elemental		305	250	[[]] [[]] Melee (crush)	West of the Rogues' Castle	Pet chaos elemental  Dragon pickaxe  Dragon 2h sword

World bosses

World bosses spawn across Gielinor either out in the open or in their lairs. World bosses are defined as bosses which spawn naturally, on their own, and can be killed at any time, as opposed to instanced bosses which spawn only in private lairs based on the actions of the player to whom the instance belongs. Some world bosses may, however, be killed in private instances for a price. Some world bosses, namely the Barrows brothers and God Wars Dungeon generals, also have additional requirements and mechanics related to finding and killing them. In the case of the Barrows brothers, they do not drop loot directly, but their defeat instead contributes to a single reward.

Boss		Level	Hitpoints	Attack style(s)	Location	Solo only	Requirements	Collection log
Ahrim the Blighted		98	100	[[]]	Barrows	Yes	Priest in Peril	Ahrim's hood  Ahrim's robetop  Ahrim's robeskirt  Ahrim's staff  Bolt rack
Karil the Tainted		98	100	[[]]	Barrows	Yes	Priest in Peril	Karil's coif  Karil's leathertop  Karil's leatherskirt  Karil's crossbow  Bolt rack
Dharok the Wretched		115	100	Melee (slash)	Barrows	Yes	Priest in Peril	Dharok's helm  Dharok's platebody  Dharok's platelegs  Dharok's greataxe  Bolt rack
Guthan the Infested		115	100	Melee (crush)	Barrows	Yes	Priest in Peril	Guthan's helm  Guthan's platebody  Guthan's chainskirt  Guthan's warspear  Bolt rack
Torag the Corrupted		115	100	Melee (crush)	Barrows	Yes	Priest in Peril	Torag's helm  Torag's platebody  Torag's platelegs  Torag's hammers  Bolt rack
Verac the Defiled		115	100	Melee (stab)	Barrows	Yes	Priest in Peril	Verac's helm  Verac's brassard  Verac's plateskirt  Verac's flail  Bolt rack
Corporeal Beast		785	2000	Melee (crush) [[]]	Corporeal Beast Lair (Optionally instanced)	No	N/A	Pet dark core  Elysian sigil  Spectral sigil  Arcane sigil  Holy elixir  Spirit shield  Jar of spirits

Instanced bosses

As opposed to world bosses, instanced bosses can only be killed by a single player in the boss's lair, without the aid or even presence of other players. The notable exception is The Nightmare. While Phosani's Nightmare is indeed a solo encounter, The Nightmare is an instanced boss that can be killed in a group. Spawning instanced bosses may require a direct action by the player, such as for Vorkath and The Nightmare, but the boss may also simply spawn when the player enters the instance, such as for Zulrah and The Phantom Muspah.

Boss		Level	Hitpoints	Attack style(s)	Location	Requirements	Collection log
Zulrah		725	500	Melee (Typeless) [[]] [[]]	Zul-Andra	Regicide	Pet snakeling  Tanzanite mutagen  Magma mutagen  Jar of swamp  Magic fang  Serpentine visage  Tanzanite fang  Zul-andra teleport  Uncut onyx  Zulrah's scales

Sporadic bosses

Sporadic bosses are those that cannot be fought whenever the player wishes. Instead, they require a special item of some sort to gain access to them, which is obtained by partaking in other more common activities. Naturally, these bosses will also be instanced given the nature of their sporadic logistic. Of this list, Obor and Bryophyta are notably the only free-to-play bosses outside of quests.

Boss		Level	Hitpoints	Attack style(s)	Location	Requirements	Collection log
The Mimic		186	222	Melee (crush) [[]]	Watson's house in Hosidius	Mimic	Ring of 3rd age
Skotizo		321	450	Melee (slash) [[]]	The Catacombs of Kourend	Dark totem	Skotos  Jar of darkness  Dark claw  Dark totem  Uncut onyx  Ancient shard

Slayer bosses

Slayer bosses are a specific set of bosses that are only unlocked by training Slayer. Each one corresponds to another monster commonly assigned for Slayer tasks, which, with the exception of hellhounds, are also unlocked by training Slayer. In addition to a Slayer level requirement, each boss requires a task for either the boss itself or the equivalent monster in order to be fought.

Boss		Level	Hitpoints	Attack style(s)	Location	Requirements	Collection log
Kraken		291	255	[[]] (Typeless)	Kraken Cove (Optionally instanced)	87 Slayer 50 [[]] 80 [[]] Cave kraken or Kraken slayer task	Pet kraken  Kraken tentacle  Trident of the seas (full)  Jar of dirt

Minigame bosses

These bosses are fought as parts of instanced minigames. The combat achievements for these minigames usually (but not always) relate to or at least require the defeat of the bosses, and, like other boss pets, pets rewarded by these minigames are typically smaller versions of the bosses.

Boss		Level	Hitpoints	Attack style(s)	Minigame	Requirements	Collection log
TzTok-Jad		702	250	[[]] Melee (stab) [[]]	TzHaar Fight Caves	N/A	Tzrek-jad  Fire cape

Raids

Raids are high-level activities with a set of bosses that players can fight either alone or with a team.

Chambers of Xeric

Bosses within the Chambers of Xeric are sporadic: as the layout of each raid is randomised, the bosses that players will encounter as well as their order may vary, with the exception of the Great Olm, which appears at the end of every raid. This is not the case if the Challenge Mode is enabled, where each boss is encountered and there is no randomisation. Each boss' stats also scale to the amount of players in the raid and their combat level. All bosses except ice demon and the Great Olm drop potions, seeds or ingredients to use in the raid; once the Great Olm is defeated, the exit is opened and players can collect their loot, the quality of which scales to their performance in the raid.

Boss		Attack style(s)	Special attacks or mechanics
Great Olm		[[]] [[]]	Has a multitude of special attacks

Theatre of Blood

Unlike the Chambers of Xeric, bosses within the Theatre of Blood take place in a predetermined order. Their hitpoints are scaled depending on the number of players from three to five; if there are only one or two players, the scaling for three players is used, and five is the maximum number of players per team. Bosses do not drop anything, although there are resource chests where players can obtain potions and food for upcoming encounters; after defeating Verzik Vitur, the entrance to her vault is opened where players can obtain their loot, the quality of which scales to their performance in the raid.

Boss		Attack style(s)	Special attacks or mechanics
Verzik Vitur		[[]] [[]] Melee (crush)	Has a multitude of special attacks across three phases

See also

• Strongest monster
• Monster
• PvM
• Demonic gorilla