Coin per minute:
|Lvl. 1||Lvl. 2||Lvl. 3||Lvl. 4||Lvl. 5||Lvl. 6||Lvl. 7||Lvl. 8||Lvl. 9||Lvl. 10|
|Lvl. 11||Lvl. 12||Lvl. 13||Lvl. 14||Lvl. 15||Lvl. 16||Lvl. 17||Lvl. 18||Lvl. 19||Lvl. 20|
Boost Calculation Guide to use with the page linked above.
- The Howl Dragon was released on January 15, 2014, along with the Ooze Dragon, Abyss Dragon, and the Miasma Dragon.
- The description mentions "use their screams to navigate at night". This is probably a reference to echolocation. This is a method by which animals (primarily bats), use the reflected echoes of high pitched squeaks to "see" their surroundings with sound.
- The "Allengin mountain range", mentioned in the description, is probably a reference to Irwin Allen Ginsberg, an American poet who's most influential work was a poem entitled "Howl".