Skill pure

A Skill pure or skiller is a player that develops non-combat skills rather than combat skills. Skill pures usually have the goal to reach as high as possible in all skills that do not increase Combat level, and normally keep combat skills at level 1, making them 3 combat. This makes it harder to gain levels, as areas with dangerous monsters, or areas that require a quest involving combat, cannot be used for training. Combat skills (Attack, Strength, Defence, Ranged, Summoning, and Magic) are not trained by skillers. After the Evolution of Combat update on 20 November, 2012, skillers could train Constitution and Prayer without raising their combat level past 4. However, with the re-release of the Level 138 combat calculation, this is no longer possible.

It is recommended that skill pures wield ranged weapons without ammo (a shortbow, shieldbow, crossbow for example) or a magic weapon without setting an autocast spell (such as a staff, magic staff, or wizard wand). This is to avoid getting combat XP by accidentally attacking monsters.

Variations
Skill pure can come in a variety of different forms these days. With the change in combat level back to 138 the below table shows the different variations with combat level and stats.

Level 3
This is the generic skiller; all combat stats 1. These are the most commonly found skiller in the community. They can achieve slayer levels through various methods.
 * 1) Jack of Trades Aura
 * 2) Lamps from Treasure Hunter
 * 3) Completing Combat Academy in Lumbridge
 * 4) Penguin Hide-n-Seek D&D
 * 5) Recoiling God Statues
 * 6) Soul Wars
 * 7) Recoiling Troll Invasion
 * 8) Recoiling Slayer Daily Tasks

Summoning Pure
These accounts gain 99 summoning through means of collecting charms without levelling any other combat stats. The various methods include: A common misconception is that summoning pures are able to acquire charms from the Soul Wars minigame. This is not possible as the exchange of Zeal points for charms requires a minimum combat level of 30.
 * 1) Charm Sprites
 * 2) Lootsharing
 * 3) Bonfires

Prayer Pure
These accounts are the most common for the skilling varieties due to to easy nature of bones being tradable.

HP Pure
These accounts tend to be the rarest you'll find, they train constitution with all other combat stats 1. This can be achieved through various methods. Note: Pest Control cannot be used to gain constitution xp, as it requires a combat level of at least 35 to play; the maximum combat level possible for an HP pure is 25.
 * 1) Soul Wars.
 * 2) Lamps from Treasure Hunter.
 * 3) Jack of Trades Aura.

Quests
The following quests are possible to complete while being and remaining level 3 combat. Food and Rings of recoil may be necessary to complete several of these quests.

''Note: due to the Evolution of Combat, many of these quests are now more difficult to complete without gaining experience. Using Rings of recoil may result in gaining combat experience, as you gain the experience after killing the monster. There is also currently a fix during some quests where the recoil will not complete a kill and the monster will either regenerate from zero or not drop the item required, such as keys.''

Maximum Quest Points (Free-Play): 28

Maximum Quest Points (Member): 154

Summoning Pures exclusive The skills required to complete the above quests are the following:
 * Free to Play
 * Cook's Assistant
 * Druidic Ritual
 * Ernest the Chicken
 * Goblin Diplomacy
 * Gunnar's Ground
 * The Knight's Sword
 * Let Them Eat Pie
 * Myths of the White Lands
 * Pirate's Treasure
 * Shield of Arrav
 * Swept Away
 * Members-only
 * Biohazard
 * Broken Home
 * Buyers and Cellars
 * Call of the Ancestors
 * Clock Tower
 * Cold War
 * Creature of Fenkenstrain
 * Deadliest Catch
 * Death Plateau
 * Dimension of Disaster: Coin of the Realm
 * Dimension of Disaster: Demon Slayer
 * The Dig Site
 * Dwarf Cannon
 * Eagle's Peak
 * Elemental Workshop I
 * Enlightened Journey
 * Family Crest (Deathtouch darts are needed)
 * The Feud
 * Fishing Contest
 * Garden of Tranquillity
 * Gertrude's Cat
 * The Golem
 * The Hand in the Sand
 * Hazeel Cult
 * In Pyre Need
 * Jungle Potion
 * Lost City
 * The Lost Tribe
 * Missing, Presumed Death (Recoil)
 * Merlin's Crystal
 * Monk's Friend
 * Murder Mystery
 * My Arm's Big Adventure
 * Perils of Ice Mountain
 * Plague City
 * Recipe for Disaster: Dwarf
 * Recipe for Disaster: Goblin Generals
 * Recipe for Disaster: Starting Out
 * Sea Slug
 * Sheep Herder
 * Shilo Village (Recoil)
 * Tears of Guthix
 * The Tourist Trap
 * Tower of Life
 * Tribal Totem
 * Bringing Home the Bacon
 * Dishonour among Thieves
 * Wolf Whistle

Citadel pure
A Citadel pure is a type of skill pure, a player account created solely for the purpose of skilling in a Clan Citadel. As such, the only skills trained on a Citadel pure account are the skills involved in Citadel resourcing: Woodcutting, Mining, Firemaking, Smithing, Cooking, Crafting and Summoning.

These accounts are often created by higher-ranking members of clans to assist in the process of gaining needed resources each week. Only a certain amount of resources may be collected by a single account per week, so the creator uses this account to collect more resources than would normally be allowed.

Minigames
There are certain activities that skillers can do. The ones listed are those that are possible to do at 3 combat. Some activities may need precaution to avoid combat experience.
 * Barbarian Assault
 * Castle Wars
 * Duel Arena
 * Fist of Guthix
 * Fish Flingers
 * Games Room in Burthorpe
 * Gnome Delivery
 * Great Orb Project
 * Mobilising Armies
 * Pyramid Plunder
 * Rogue's Den
 * Runespan
 * Sorceress' Garden (Diamond in the Rough is currently not complete-able without the use of Deathtouched Darts).
 * Social Slayer
 * Soul Wars
 * Stealing Creation
 * Trawler Fishing
 * Vinesweeper
 * Heist

Challenges

 * Certain quests are impossible as some carry combat skill rewards or involve killing a monster (which can be challenging).
 * Skillers are unable to wield any weapons or armour requiring a combat-related skill of a level higher than one.
 * Skillers with 85+ Mining are not able to effectively mine runite ore, making the skill less useful. Although, since the new Resource Dungeon release, those who have a sufficient Dungeoneering level can access new and safe runite rocks.
 * Slayer is very difficult to level efficiently. Although Slayer tasks can be completed using rings of recoil and retribution/wrath, methods such as using experience lamps and the rewards from Penguin Hide and Seek and Soul Wars can be used to get experience without actually completing any Slayer tasks.
 * Another challenge for skillers is the fact that a lot of people don't like the idea of them. Many skillers have to put up with a lot of insulting and negativity from other players. However, this is not always the case, as many skillers become what they are due to popularity of creating a skiller.
 * Only skiller accounts created before the Rune Mysteries, 20 November, 2012, could complete the quest and remain level 3. After the update, skillers who attempt the quest gain 250 magic experience, bringing the player to level 4.

Skillers in Combat
Skillers can train some skills that have uses in combat. Skillers use these skills to defend, not to attack, so they won't get any combat experience. These skills are
 * Slayer - Gives access to new equipment which can be used in combat
 * Firemaking - Extra health when contributing to Bonfires
 * Dungeoneering - Gives access to new equipment which can be used in combat
 * Herblore - Gives access to non-tradeable potions which can be useful in combat
 * Agility - Increases the rate in which your run energy restores and decreases the rate in which it lowers.

Trivia

 * There are a few skillers that have level 9 Constitution. This was done by making an account in RuneScape Classic and transferring it to RuneScape 2. Since you only received 1000 Constitution experience in RuneScape Classic, when you switched to RuneScape 2, you would have level 9 Constitution.
 * There have also been skillers with level 1 Constitution. This was done by botting in the early stages of RuneScape Classic. If caught by Jagex, they would reset your Constitution experience to 0. Some of these accounts have since been locked by Jagex.