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Pet Companions in IdleOn give some of the best account-wide bonuses in the game, and with many of them costing real-life money, you'll want to choose wisely which ones to purchase. Here is our Tier List for Pet Companions, sorted by the pets that we think give the most impactful benefits.
For a full list of all pets in IdleOn, including how to obtain them, check out our Pet Companion guide.
Don't forget, you can now Trade Pets with other players in IdleOn. Pets purchased with Pet Crystals or that come from Gem Packs are tradeable. Pets obtained from Free Pet Rolls are not.
Pets are constantly being added to IdleOn, so this Tier List is based on our preferred pets.
- Tier S - The best Pets, well worth getting over all others and likely to give you the biggest boosts going forward.
- Tier A - Very decent pets to buy when you have enough Pet Crystals available.
- Tier B - Useful but not quite as important as A or S Tiers. Only buy these if you're overflowing with Crystals!
- Tier C - Avoid these unless you've got unlimited amounts of money!
- Tier D - You should get these last!
If you have a preference for a pet, leave a comment below and we'll update our Tier List!
Tier S Pets
- King Doot - All Divinities from World 5 count as Active
- Ancient Golem - 10x Total Damage
- Crystal Glunko Pet - 1.5x Damage, 1.4x Class EXP, 1.3x Drop Rate, 1.2x Extra Skills
- Rift Stalker - +10 Research PTS, +20% Research AFK Gains, 2x Research EXP Gain, +1 Magnifier
- Mama Troll - +100% Drop Rate and 1.50x Drop Rate Multi
- Glunko The Massive - 3x Total Damage, 5x Class EXP gain, 1.5x Drop Rate
- Verminous - +10,000% additive Gold Food bonus effect and 1.50x multiplier to Gold Food
King Doot still remains one of the best pets in IdleOn, despite it being one of the first pets ever added to the game. It makes all your Divinity god's count as active, which means a massive 8 bonuses you get to share amongst all your characters. King Doot can also be now purchased from a rotating Pet Mart pack.
Rift Stalker seriously improves the World 7 Research Skill. Research is a huge part of World 7 and it adds many other bonuses for the rest of IdleOn, so it's well worth getting to help with progression
The rest could be pushed into A tier, but they offer massive boosts to critical stats like Damage and Drop Rate.
Tier A Pets
- Whallamus - 10x Class EXP and +10 Legend Talent PTS
- Balloonfish - 4x Masterclass drops (bones/dust/tachyon)
- Pufferblob - +50% Meritocracy Bonus Multi
- Rift Jocund - 2x Kills for Opening Portals and Deathnote
- Rift Slug - +25 Lv for all Talents
- Dedotated Ram - You can use Storage Chest anywhere in Quickref
- Sheepie - All big bubbles in Alchemy count as equipped
- Cool Bird - 4x Coins from Mobs
- Axolotl - +50% AFK Gains
- Mallay - 1.30x Drop Rate
- Reindeer - 2.00x Gold Ball Shop Bonuses (Arcade)
- Marvelous Pig Pet - 2x Friend Bonus, +2 Friend Bonus Slots (When gifted to a friend, they get: Auto-Loot, Use Storage Anywhere, Infinite Teleporting)
- Nacho Pet - 2x Damage, 2x Class EXP Gain
- Bubba Pet - +30% Gallery Multi
- Hedgehog Pet - +200% Gold Ball Gain
- Santa Pet - 3x Bonuses from Orion, Poppy and Bubba
- Jellofish Pet - 1.5x Research EXP
- Royal Egg - 2x LVs for Monuments Bonuses when selecting Rewards!
- Smoke Devil - 100x Jade Gain, 40x Ninja Stealth, and 2.50x Sneaking EXP
- Armadillo - +100% additive Crystal Monster Spawn chance
- Koi Fish - 100x Gaming Bits gained (World 5 feature)
- Mantaray - All bonuses from The Button in W7 are 1.50x bigger
- Poppy - 2x bonuses from Bonus Ballot and Multi Meritocracy
There are actually tons of Tier A pets in IdleOn; they give very useful bonuses when acquired but don't quite make the S Tier.
Poppy and Pufferblob pets will start making the Weekly Bonus Ballot become a lot more interesting and well worth planning around. Some of the World 7 Meritocracy Bonuses can give massive gains.
Smoke Devil and Koi Fish basically make Sneaking and Gaming tedious to play and allow you to unlock all the end-game rewards.
Rift Jocund is especially useful for pushing Worlds and unlocking maps.
There are also plenty of Pets here that give multi bonuses to coin drop rate.
Tier B Pets
- Shellslug - 1.75 Daily Reef Coral
- Crystal Cuttlefish - +40% Ballot Bonus Multi
- Eamsy Earl - +1 Grade for 2 Gallery Showcases
- Litterfish - 1.25x Artifact Find Chance
- Spearfish - +1 Friend Bonus slot
- Equinox Broadbass - 1.50x Coins from monsters
- Samurai Guardian - 3x Villager EXP and +25 Obols
- Leek Spirit - 3.50x faster Equinox Bar Fill Rate
- Crystal Capybara - 1.75x Laboratory EXP Gain and Divinity EXP Gain
- Biggole Mole - 3d Printer samples grow +1%/day for 100 days
- Crystal Custard - +100% Drop Rate and Exp from monsters
- Slime - +25% Golden Balls earned in Arcade for Upgrades
- Squirrel Pet - 1.5x Extra Kills
- Whale - 2x Class EXP, 2x Skill EXP
- Bunny Pet - 3x Class EXP Gain
- Panda Pet - 2x Refinery Salts Produced
- Glimbo Pet - 1.6x Extra Kills, 2x Artifact Chance
- Mine Pet - 20x Spelunking POW, 2x Mines/hr
- Jellofish Pet - 1.5x Research EXP
- Vanillie Pet - +2,500% Gold Food Bonuses
- Potluck Pet - 2.5x coins from mobs
- Rift Spooker - 3x Cooking Mastery, +5 CM PTS
- Boar Pet - +15% Hat Rack Bonus Multi
- Eggroll - 3x Class EXP gain
- Wickerlight Spirit - All meals are 5x cheaper to level up, and give 1.25x higher bonuses!
- Neonscale - +1 new Research Shape, shows up after you get Research Lv 20
- Pirate Deckhand - Multiplies ALL Research Grid bonuses by 1.15x (World 7 feature)
- Dreadnaught Captain - Glimbo's Swap Meet's prices are 5.00x cheaper (World 7 feature)
- Rift Hivemind - +50% Prisma Bubble bonus multi and +5 Prisma Bubbles
- Cryosnake - All Upgrade Vault upgrades are 50% cheaper!
- Mechanical Mouse - 2x Construction Build Speed
- Baby Troll - +100% Class EXP and 1.50x Class EXP Multi
- Clammie - +100% Class EXP and Drop Rate
- Glowfish - Both +200 and 1.20x Max Stamina for Spelunking!
- Magician Grub - 1.25x Total Damage
- Imperial Ogre - +20% Marble and Parchment drop rate for Royal Guardians
- Bin Goosey - All daily ribbons have a 50% chance to be +1 Tier, 40% for +3 Tiers, and 10% for +5 Tiers
You can also see there are a ton of Tier B pets. Many of these you'll want to get once you get closer to end-game and are pushing for those micro-gains. And many of these only become important when you've progressed further into World 7 Mechanics.
Bin Goosey is probably the only pet I'd put closer to A tier; it helps upgrading your Cooking meals by applying multi-bonuses through the use of Ribbons.
If you want to make Spelunking a doddle, the Mine Pet offers a massive 20x Spelunking POW bonus.
The Glimbo Pet is also nice for those pushing Sailing to the Transcendant tier.
Tier C Pets
- Frog - +10% Total Damage
- Sandy Pot - +15 Base All Stats (STR/AGI/WIS/LUK)
- Molti - +5% All Skill Efficiency
- Flying Worm - +30 Talent Points for all classes
- Mafioso - +15% faster Alchemy Brew Speed
- Purp Mushroom - +5% Golden Food Bonus
- Bloque - +20% All Skill EXP
- Gigafrog - +25% Carry Capacity for all item types
- Mashed Potatoe - +5% Ballot Bonus Multi
- Quenchie - +15% Drop Rate
- Lucky Slug - +15% Drop Rate
- Bored Bean - +5% AFK Gains Rate for Fighting and Skills
- Santa Snake - +25% Class EXP, +25% Drop Rate, 1.01x Class EXP, and 1.01x Drop Rate
The bonuses from these pets are weak at best; many of these pets were more useful before World 7 features were added. Now you get plenty of sources for these stats that they really don't provide much anymore.
That being said, most of these can be obtained by using your Free Pet of the day.
Santa Snake was given out for free during Christmas in IdleOn 2025.
Tier D Pets
- Green Mushroom - 15% Accuracy
- Poisonic Frog - 15% Defence
- Baby Boa - +10% Class EXP
Most of these low-tier D pets come from the early Pet Companion tiers, meaning they're easy to get and you're likely to get multiple copies of them. You also now get one free pet per day, so these are very easy to get too.
Got a suggestion for where a Pet ranks in our Tier List? Leave a comment below!
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