“ | Another of the mysterious Ethereals, you can never fully tell what kind of mood the Grumpyre is in. Thanks to its shifting eyes and mouth as it gurgles forth its song, it might appear sad when really it's happy, or afraid when it's actually having a blast. This makes sense, since it embodies the essence of Shadow - always a bit obscured, and able to unnerve even the most intrepid of Monsters. | ” |
— Monster Bio |
Description
Grumpyre is a single-element Ethereal Monster with the Shadow element. It is first available on Cold Island and can be teleported to Ethereal Island once fed to level 15. Grumpyre was added on August 19th, 2013 during Version 1.1.7. It is best obtained by breeding Deedge and a triple-element Monster. By default, its breeding time is 1 day and 12 hours long. Grumpyre has a decent coin production on Cold Island and is comparable to Deedge. Although useful for beginners, it is recommended to get other Monsters with higher coin production.
Once teleported to Ethereal Island, Grumpyre takes 10 hours to incubate. You can then breed it with any other Monster to get more. Like all single-element Ethereals, Grumpyre has excellent shard production, bested only by other single-element Rare and Epic Monsters. Note that Grumpyre has a slightly lower rate than Reebro, Jeeode, and Humbug.
Song
Audio sample:
Voice actor: Christopher Elliot
The Grumpyre sings "boom-Shicka-la-Shicka, boom-Shicka-la-Shika" in a harsh whispering voice. It does this repeatedly for its part in the Cold Island song. In Ethereal Island, it sings "boom-shika-La, boom-shika-la-la-la-la boom-shika-la, boom-shika-la-la, boom-shika-la, boom-shika-la-la-la-la Boom-shika-la, Boom-shika-la-la"
Breeding
The Grumpyre can be bred using a combination of a Deedge and one three-element monster. Possible combination(s):
There is roughly a 1% chance of breeding this successfully. It is uncertain whether some combinations work better than others. According to statistics, doing 70 attempts gives you a 50% chance of successfully breeding at least one Grumpyre; and doing 690 attempts gives you a 99.9% chance of successfully breeding at least one Grumpyre. Note that a Rare Monster could substitute any of the parents. The only exceptions are "Ethereal Breeding Bonanzas". These increase the chance of breeding an Ethereal by 500% (5x).
Likes
Every monster has different things that they like. For every unique object that they like that's placed near the monster, the monster's happiness will increase by 25%. Placing more than one of the same liked item near a monster will still only increase its happiness by 25%. If there's a Unity Tree on the island, items don't need to be near the monsters. Below are the things liked by Grumpyre:
- Maw (requires level 7) (
)
- Arackulele (level 9) (
)
- Saggle Tree (level 8)
- Dragon Tower (level 20)
- Bass String Bridge (level 19) (
)
See the Likes page to view a complete list of all monsters' likes.
Used in Breeding
Grumpyre is used in the following breeding combinations: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Statistics
Earning Rate and Maximum Income
Earning rate is in Coins per minute or Shards per hour and depends on Happiness % (Likes increase Happiness) and Monster Level. Each Monster also has a maximum amount of income it can hold at a time. Increasing the Monster's Level also increases this limit.
Coins
Shards
Feeding Monsters
Each monster needs to be fed four times before it reaches the next level. Increasing the monster's level increases the shards earned per hour, as well as the maximum shards earned.
The food per level table: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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More info can be found in the Feeding article. Note: with the Ethereal Island update, Grumpyre can be fed up to level 15, at which time it can be placed on Ethereal Island, instead of Gold Island.
Possible Monster Names
To see all possible names for Grumpyre, see Monster Names.
Notes

Grumpyre with the different facial expressions
- Grumpyre's name may be a portmanteau between Grumpy and Vampire, due to the ambiguous facial expressions that the monster makes and to its bat-like traits.
- The Grumpyre, like any other Ethereal monster, can only be placed in the Breeding Structure on Ethereal Island.
- The Grumpyre continues to emit black smoke even when it sleeps (i.e. is muted), albeit in lesser quantities.
- When they are muted, they also rest on the ground.
- One of the Breeding Combinations (Thumpies and Deedge) was also the combination for the Yool. BBB eventually realized the confusion, and changed the Yool's breeding combination on September 13th, 2014, when the Time of the Season event was started on Anniversary Month.
- Even though there are holes in the Grumpyre's wings, it still flies without any problem.
- In the info menu, the Grumpyre's eyebrows never emerge, similarly to its pre-1.3.1 appearance.
- The Grumpyre is the only single-element ethereal to sing. This is similar to Noggin being the only single-element natural monster to not sing.
- Before the introduction of Ethereal Island, Grumpyre temporarily maxed out at level 10. If you tried to feed past Level 10 before, you would receive a message saying, "This monster is satisfied for now, and will not eat any more food."
- Grumpyre was voiced by Monster Handler Chris (from Extra Life 2018 live stream).
- Despite its name and grumpy appearance, the Grumpyre was the first Ethereal to dress up for a holiday.
- Similarly to Wubbox, Grumpyre's monster portrait shows its early design.
Monsters | |||
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Magical Double Element Magical Triple Element Magical Quad Element Rare Single Natural and Fire Element Rare Double Natural and Fire Element Rare Triple Natural and Fire Element Rare Quad Natural and Fire Element Rare Single Magical Element Rare Double Magical Element Rare Triple Magical Element Rare Supernatural Rarethereal Single Element Rarethereal Double Element Epic Single Natural and Fire Element Epic Double Natural and Fire Element Epic Triple Natural and Fire Element Epic Quad Natural and Fire Element Epic Supernatural Epic Ethereal Single Element |
Breeding | Eggs | Feeding | Likes |
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