Skill pure

A skiller or skill pure 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 combat level 3. 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, Magic, Prayer, and Summoning) are not trained by skillers.

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.

Level 3
This is the generic skiller; all combat skills are level 1. These are the most commonly-found type of skiller. They are able to gain Slayer levels through various methods:
 * Jack of trades aura
 * Lamps from Treasure Hunter
 * Completing the Combat Academy in Lumbridge
 * Penguin Hide and Seek D&D
 * Using a ring of recoil to defeat God Statue enemies
 * Soul Wars
 * Troll Invasion
 * Using a ring of recoil to complete Slayer daily tasks
 * Using a Slayer skill training dummy
 * Tagging slayer kills (dealing a 0) and having another account finish the kill

Summoning Pure
The only combat skill these accounts train is Summoning. The various methods used to collect the necessary charms without training other combat skills 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.
 * Charm sprites
 * Using LootShare
 * Interacting fire spirits that occasionally emerge from bonfires while adding logs to them

Prayer Pure
The only combat skill these accounts train is Prayer. These accounts are a fairly common type of skiller due to the accessibility of bones/ashes.

Constitution 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.
 * Soul Wars.
 * Lamps from Treasure Hunter.
 * Jack of Trades Aura.

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 a Constitution pure is 25.

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 combat 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 a certain required item.''

Maximum quest points (free-to-play): 36

Maximum quest points (members): 159

Summoning pure exclusive quests:
 * Free-to-play
 * Cook's Assistant
 * Death Plateau *
 * Demon Slayer
 * The skeletons can be simply recoiled, no need to splash 0 damage.
 * The cultists can be recoiled, but if Gideon Bede does damage to them, they will give you experience upon death. Let them attack you from afar and recoil them down, as if you get too close, Gideon (who follows you) will engage them.
 * The boss gives no experience whatsoever. You must damage and kill him with Silverlight.
 * Druidic Ritual
 * Ernest the Chicken
 * Goblin Diplomacy
 * Gower Quest (combat required)
 * Gunnar's Ground
 * The Knight's Sword
 * Let Them Eat Pie
 * Myths of the White Lands
 * Pirate's Treasure
 * Rune Mysteries
 * Shield of Arrav
 * Stolen Hearts (Ring of recoil needed)
 * Swept Away
 * What's Mine is Yours (Ring of recoil needed)
 * Members-only
 * Biohazard *
 * Broken Home
 * Buyers and Cellars
 * Clock Tower
 * Cold War
 * Creature of Fenkenstrain
 * Deadliest Catch
 * Dimension of Disaster: Coin of the Realm
 * Dimension of Disaster: Demon Slayer
 * Diamond in the Rough
 * All enemies can be defeated using a Blood amulet of fury, and possibly with just recoils. Care must be taken to avoid hitting for greater than 0 damage on the bandits, as they can yield experience. You must attack the bandits focusing on Ozan in order to make them switch targets. Teleport out and retry if you deal damage. Saradomin brews may help.
 * The Dig Site
 * Dwarf Cannon
 * Eagle's Peak
 * Elemental Workshop I
 * Enlightened Journey
 * Family Crest (One Deathtouched dart is needed)
 * The Feud
 * The two quest bosses have too much health to kill with just recoils. They will despawn if you take too long. However, the Blood amulet of fury will suffice.
 * Fishing Contest
 * Garden of Tranquillity
 * Gertrude's Cat
 * The Golem
 * The Hand in the Sand
 * Hazeel Cult
 * Hunt for Red Raktuber
 * Impressing the Locals
 * In Pyre Need
 * The Jack of Spades
 * Jungle Potion
 * Lost City
 * The Lost Tribe
 * Missing, Presumed Death (Ring of recoil needed)
 * 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: Pirate Pete (Ring of recoil needed)
 * Recipe for Disaster: Starting Out
 * Sea Slug
 * Sheep Herder
 * Shilo Village
 * The quest boss has too much health to kill with just recoils. The Blood amulet of fury is enough for the first two forms, but the final form is not possible with the amulet+recoils. The Deathtouch bracelet may help.
 * Some Like It Cold
 * Tears of Guthix
 * The Tourist Trap
 * Tower of Life
 * Tribal Totem
 * Bringing Home the Bacon
 * Dishonour among Thieves
 * Wolf Whistle

Note: * indicates the Quest(s) as being unable to complete due to a Fix with Combat progressions.

The skills required to complete the above quests are the following:

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 combat level 3. Precautions may need to be taken in some activities to avoid gaining 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
 * Rogues' Den
 * Runespan
 * Sorceress' Garden ( Diamond in the Rough is currently unable to be completed as a skiller without the use of Deathtouched dart s ).
 * Social Slayer
 * Soul Wars
 * Stealing Creation
 * Fishing Trawler
 * Vinesweeper
 * Heist

Challenges

 * Certain quests are impossible to complete while remaining a skiller as they 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 1.
 * Skillers with 85+ Mining are not able to effectively mine runite ore, making the skill less useful. However, since the release of the Mining Guild resource dungeon, those who have a sufficient Dungeoneering level can access new and safe runite rocks.
 * Slayer is very difficult to level efficiently for a skiller. 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.

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 adding logs to a bonfire
 * 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 at which your run energy restores and decreases the rate at 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.