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 Promethium Dragon was released on January 27, 2014, along with the Palladium Dragon, Radiant Dragon, and the Acid Dragon.
- The in-game information for the Promethium Dragon, and the Acid Dragon had their incubation and breeding times mixed up when they were first released.
- The Promethium Dragon was released with no sound or cry.
- The glitch was fixed on May 13, 2014.