Demon

Demons are a class of creature including a number of very similar races; many are characterised by a mix of human- and beast-like features, often in hellish black or red colours.

Demons usually come from other realms, such as the Infernal Dimensions and Abyss and most are servants of Zamorak. They are generally considered to be fairly strong, except for imps, and have low defence strengths. Most regular demons fight by using melee, but more powerful ones can also use magic. Demons usually fight barehanded, save imps and some of the most powerful demon generals. The ability to slay stronger and stronger demons is often a personal landmark for many players. Demons are especially weak towards magic but not so weak towards melee attacks. The magical swords Silverlight and Darklight, imbued by the power of Guthix himself, are enchanted to be especially effective against demons. Holy Water is a powerful ranged weapon against demons.

Many but not all players believe that demons ranging from Lesser demons to Black demons have relatively poor drops when killed, so it is not recommended to kill these for any purpose other for than Slayer task or by medium level player seeking combat experience. Other players believe that lesser and greater demons can be profitable if they can be killed quickly and their c. 300+ coin weapon drops cashed in with High Level Alchemy, and even a few players can be found training against the powerful black demons. Most players agree that demons known for worthwhile drops are Tormented demons, Abyssal demons, K'ril Tsutsaroth, and Nechryael, although all of these are either hard to kill or require high slayer levels.

Types of Demon
The following monsters are demons. There are also several demonic monsters in quests:
 * K'ril Tsutsaroth
 * Balfrug Kreeyath
 * Zak'ln Gritch
 * Tstanon Karlak
 * To'Kash the Bloodchiller
 * Har'Lakk the Riftsplitter
 * Bal'lak the Pummeller
 * Yk'Lagor the Thunderous
 * Kal'Ger the Warmonger
 * Impling
 * Impling defender
 * Imp
 * Revenant imp
 * Icefiend
 * Pyrefiend
 * Waterfiend
 * Luminescent Icefiend
 * Bloodveld
 * Lesser demon
 * Greater demon
 * Black demon
 * Abyssal demon
 * Nechryael
 * Death spawn
 * Imp Champion
 * Lesser Demon Champion
 * Revenant demon
 * Tormented Demon
 * Hellhound (also part dog, but does not count as a dog on Slayer tasks)
 * Delrith
 * Nezikchened
 * Jungle demon
 * Chronozon
 * Agrith-Naar
 * Othanian
 * Holthion
 * Doomion
 * Tormented Demon
 * Ice demon
 * Hellrat

Demons in Construction

 * There is a demon butler named Alathazdrar, who can be hired as a servant for a player-owned house at level 50 Construction for 10,000 coins.
 * Players with level 75 Construction may purchase a level 82 greater demon to guard the Treasure Room of a Player-owned house.

Demons that cannot be attacked

 * Implings and Impling defenders in the Impetuous Impulses activity.
 * Mazchna and Achtryn, demonic Slayer masters.
 * Sergeant Damien, demonic trainer in the Drill Demon Random event.
 * The legendary but deceased Thammaron was an Elder-Demon.
 * Alathazdrar, the demon butler.
 * Hellrats, also part rat.
 * Hellcats, also part cat.
 * Banner Carriers.

Other

 * Slayer Masters sometimes mention a Bloodveld as a "strange, demonic creature" or a "half-ton demon". However, bloodvelds drop bones when killed, whereas all or almost all other demons drop ashes. This calls into question whether bloodvelds are truly demonic. It has, however, been confirmed that magical swords Silverlight and Darklight have their special effects when fighting bloodvelds. In Portuguese, bloodvelds are called like "Demônio do Sangue", in English "Demon of Blood" or simply bloodveld.
 * Slayer masters describe hellhounds as 'a cross between dogs and demons'. Hellhounds drop bones when killed. It is confirmed that hellhounds are IMMUNE to Darklight and Silverlight effects.
 * In history, a great demon named Thammaron aided Zamorak in his overthrow of Zaros. He later led the great armies of Zamorak into the Kharidian Desert, where he aided in the conquering of cities like Uzer and Ullek.

Trivia

 * With 11 different bosses, Demons are one of, if not the most common races to be quest bosses.
 * According to Evil Dave, Hellrats are demons and are the lowest form of demon, weaker even than imps. Players cannot kill hellrats, but pet cats can.
 * Reldo in Postbag from the Hedge reveals that all demons have true names, however, they do not reveal their true name because "names have powers". Demons that reveals their true names are those that are so powerful that the name can not bind them anymore. K'ril Tsutsaroth is an example.
 * In Armies of Gielinor, a game from FunOrb, you are able to summon Greater Demons which are Zamorakian followers. They are level 4 to summon and have 45 Strength.
 * Abyssal demons are known to be demons. Other denizens of the Abyss (Abyssal leeches, walkers, and guardians) are strange-looking like Abyssal demons and drop ashes like Abyssal demons (and almost all other demons). It is believed that the other denizens are not demons (although it is unknown if Holy water or Silverlight/Darklight has been tested against them). There is one known difference between Abyssal demons and other Abyssal denizens: the Abyssal demons do not drop Abyssal charms but all other denizens do.

Gallery
Demon

Demon