The Dominus Frigidus Egg is the 187th egg in Pet Simulator 99. Hatching this egg costs 8.5k 
.
Pets included in the Dominus Frigidus Egg[]
- Dominus Infernus (70%)Dominus Infernus (70%)
- Stacked Dominus (29%)Stacked Dominus (29%)
- Dominus Hippomelon (1%)Dominus Hippomelon (1%)
- Dominus Mushrooms (??)Dominus Mushrooms (??)
- Dominus Alienus (??)Dominus Alienus (??)