Pets

Pets are unlockables which give permanent bonuses.

One of the Pets in the game, Cool Rock

Pets are not items and will not appear in the bank. Instead, all acquired pets can be seen within the Pets section of the Completion Log, and will also appear in the skilling minibar if acquired from a specific non-combat skill.

Once a pet is acquired its effect is permanently active and cannot be turned off.

Acquiring Pets

The Chance to acquire a Pet on any given action of a Skill is:

[math]\displaystyle{ \dfrac{\text{Time required for action (seconds)} \times \left ( \text{Virtual level of Skill} + 1 \right )}{25\;000\;000} }[/math]

For example, a player with level 99 Crafting who has unlocked Perpetual Haste and is wearing the Crafting Skillcape will take 1.9 seconds to complete an action, which means each action will give a [math]\displaystyle{ \tfrac{1.9 \times (99 + 1)}{25\;000\;000} = 0.00076\text{%} }[/math] chance to earn Caaarrrlll.

For combat an action is an attack. For Slayer, an action is an attack against the player's current Slayer task.

All pets except Larry, the Lonely Lizard, Golden Golbin, Ty, Peri, and Otto are acquired this way.

Larry is rolled when crops are harvested. The chance formula used is unique to Larry, as explained here.
The Golden Golbin is a guaranteed drop after reaching a total Golbin Kill Count of 42,069. Both melee Golbins in the Golbin Village and all golbins in the Golbin Raid count.
Ty is rolled whenever any action is taken that rewards Mastery xp.
Peri is rolled with a 1 in 10,000 chance for each monster killed in Perilous Peaks.
Otto is rolled with a 1 in 10,000 chance for each monster killed in Dark Waters.

It is possible to acquire a Pet Offline.

List of all Pets

Name	Acquired From	Effect
Beavis	Woodcutting	+5% chance to receive double logs from Woodcutting
Pudding Duckie	Fishing	Created by Patreon (Moose) 5% chance to double the amount of Fish per catch
Pyro	Firemaking	+1% Global XP
Cris	Cooking	5% Chance to receive 2x Cooked Fish
Cool Rock	Mining	All mining nodes gain +5 Max HP. Named after CoolRox95
Puff, the Baby Dragon	Smithing	+10% chance to preserve resources when Smithing
Snek	Thieving	Gain 50% Extra Gold from Thieving
Larry, the Lonely Lizard	Farming	+5 Harvest Quantity
Quill	Fletching	Reduced Fletching interval by 0.2s
Caaarrrlll	Crafting	Reduced Crafting interval by 0.3s
Gunter	Runecrafting	+10% chance to preserve Rune Essence when crafting Runes
Gronk	Herblore	2% Chance to brew double Potions
Bruce	Attack	Gain +3 Hidden Attack Level
Lil Ron	Strength	Gain +3 Hidden Strength Level
Leonardo	Defence	Gain +1% Damage Reduction
Finn, the Cat	Hitpoints	Gain +10 Maximum HP
Marahute	Ranged	+5% Chance to preserve Ammo
Salem	Magic	+5% Chance to preserve all Runes when casting Magic
Monk-ey	Prayer	+5% Chance to ignore Prayer Point cost
Asura	Slayer	Created by Patreon ( [ ] ) Gain 20% Extra Slayer Coins from Slayer Tasks
Golden Golbin	Combat	+1% chance to double loot acquired through combat
Ty	Mastery	+3% Global Mastery XP
Peri	Perilous Peaks	+5% Evasion Ratings
Otto	Dark Waters	-0.1s Attack Speed Reduction
Ripper the Reindeer	Christmas Event 2020	None