The Thunderdrum is a Tidal Class dragon and one of the seven breeds available to choose as your first dragon. It is also obtainable by purchasing its egg in the store for 300 gems (240 for members) or through special promotional codes provided with the purchase of Riders of Berk DVDs.

Note: The code can only be used once.


From the How to Train Your Dragon Wiki:

"They form pods in hunt or on migration, and take care of each other and can be compassionate, and these features are similar to those of cetaceans. The Scauldrons also share at least the first of these traits (most of seen specimens had not been calm at times), and both of them are whale-like dragon kinds. This dragon is reclusive in nature, living in sea caves and dark tide pools or even in open waters.
"Thunderdrums are so stubborn that they can be tough to be trained. Thunderdrums show a real soft side to any adolescents even if it's not their own. As they care for them a lot if they are in trouble, it can be used as a advantage to training. Training a Thunderdrum, especially as an adult is a challenge as Thunderdrums have a hard of hearing, being nearly deaf. Showing protection and gaining the Thunderdrum's trust is a easier way to train it, as seen by Stoick and Thornado. Adolescents also don't listen. It is easier to train one from birth or have an adult to help.
"The name comes from its main mode of attack/defense. Instead of breathing fire, the Thunderdrum produces a strong concussive sound that can kill a human at close range. It is not only capable of temporally stunning other dragons, but also can even extinguish flames shot by other dragons. The blast is so powerful that the creature is said to "get its power from Thor himself." Only the Screaming Death has a tolerance with this attack (capable to stun it temporally). By combining roars by several individuals, the roars could be strengthen even further to be able to knock away several large dragons at mid-distance and instantly and literally blow them off. But instead for making vikings head explode Thunderdrum can make humans nearly death for short period of time.
"Thunderdrums can also shoot blue blasts of flames that get bigger the farther they go. Those fire blasts also travel at the speed of sound. However, it takes a lot of energy to use, so they tend not to use it."

For more information on the Thunderdrum, visit here.

In Quests Edit

Battle for the Edge Edit

Quest: Poor Archaeologist Edit

Bing, Bam and Boom (Thornado's offspring) are found roaming around The Ship Graveyard. Apparently, Thunderdrums get along well with Mudrakers, as they are both Tidal Class dragons that generate energy in the form of sound waves.

Notable Thunderdrums Edit

  • Thornado (Stoick's first dragon) is seen in several quests.
  • Bing, Bam and Boom (Thornado's offspring) are also present in some quests.


  • 7/25/13, version 1.03: Optimizations made to the Thunderdrum's animations. Freezes when receiving promo code messages fixed.
  • 8/8/13, version 2.0: Size of teen Thunderdrum adjusted. Thunderdrum egg texture fixed
  • The Titanwing stage was introduced on July 6th, 2016


  • Everytime the Thunderdrum fires, he'll hop and his entire body will "open" with its mouth however, if the player walks while firing, the limbs and both pair of wings (especially the second pair) will spaz a little due to the mix between the walking animation and the firing animation;
  • Because the Thunderdrum and the Changewing share the same animation, both jumping animations will loop the first 2 seconds and switch to the hovering animation.

Level Attack Power Fire Power Healing Power Health
1 7 8 2 170
13 85 108 2 1010
18 117 149 2 1360
21 137 174 2 1570
26 169 216 2 1920
27 176 224 2 1990
30 195 249 2 2200
33 215 274 2 2410
35 228 291 2 2550
36 234 299 2 2620
37 241 307 2 2960
38 247 315 2 2760
39 254 324 2 2830
42 273 349 2 3040
44 286 365 2 3180
45 293 374 2 3250
46 299 382 2 3320
48 312 398 2 3460
49 319 407 2 3530
50 325 415 2 3600

Broad icon Hatchling and AdulthoodEdit

Titan icon Titan StageEdit

Hero SkinEdit

War PaintEdit

Racing ColorsEdit

Class PaintEdit

Dragon Classes Boulder class Boulder Catastrophic QuakenEruptodonGrapple GrounderGroncicleGronckleHotburpleScreaming DeathSentinel (Elder Sentinel) • ShovelhelmSnafflefangThunderpedeWhispering Death
Mystery class Mystery Armor WingBoneknapperBuffalordChangewingDeath SongDeathgripperDramillionFlightmareHideous ZipplebackSlithersongSmothering SmokebreathSnaptrapperSweet Death
Sharp class Sharp Devilish DervishGrim GnasherPrickleboggleRaincutterRazorwhipScuttleclawShivertoothSpeed StingerStormcutterTimberjack
Stoker class Stoker Fireworm QueenFlame WhipperGreen DeathHobblegruntMoldruffleMonstrous NightmareNight Terror (Fire Terror) • Silver PhantomSingetailTerrible TerrorTyphoomerang
Strike class Strike Light FuryNight FurySkrillSnow WraithTriple StrykeWoolly Howl
Tidal class Tidal Luminous KrayfinSand WraithScauldronSeashockerShockjawSliquifierThunderdrumTide GliderWindwalker
Tracker class Tracker Deadly NadderMudrakerRumblehorn
Titan Dragons
Titan bknapper icon Titan buff icon Titan dnadder icon Titan dsong icon Titan dramil icon
Boneknapper Buffalord Deadly Nadder Death Song Dramillion
Titan fmare icon Titan grimg icon Titan gronck icon Titan hzipple icon Titan mnightmare icon
Flightmare Grim Gnasher Gronckle Hideous Zippleback Monstrous Nightmare
Titan razorw icon Titan rumbleh icon Titan sandw icon Titan scutter icon Titan scuttlec icon
Razorwhip Rumblehorn Sand Wraith Stormcutter Scuttleclaw
Titan sdeath icon Titan senti icon Titan shockj icon Titan skrill icon Titan snoww icon
Screaming Death Sentinel Shockjaw Skrill Snow Wraith
Titan sstinger icon Titan tdrum icon Titan tstryke icon Titan tterror icon Titan wdeath icon
Speed Stinger Thunderdrum Triple Stryke Terrible Terror Whispering Death
Titan woollyh icon
Woolly Howl