The Dominus Rex Egg is the 186th egg in Pet Simulator 99. Hatching this egg costs 3.5k 
.
Pets included in the Dominus Rex Egg[]
- Cyberpunk Husky (70%)Cyberpunk Husky (70%)
- Domortuus (20%)Domortuus (20%)
- Cyberpunk Lemur (9%)Cyberpunk Lemur (9%)
- Dominus Infernus (1%)Dominus Infernus (1%)
- Stacked Dominus (??)Stacked Dominus (??)