The Upgrade Potions Machine is a feature in Pet Simulator 99. The machine can be unlocked by unlocking Area 13 (Dark Forest) in the game. The machine requires players to put in set amount of the same potions of the same tier in order to create stronger potions.
Upgrading[]
| Tiers | Requirements |
|---|---|
| Potion II | x3 Potion I |
| Potion III | x3 Potion II |
| Potion IV | x4 Potion III |
| Potion V | x5 Potion IV |
| Potion VI | x5 Potion V |
| Potion VII | x5 Potion VI |
| Potion VIII | x5 Potion VII |
| Potion IX | x5 Potion VIII |
| Potion X | x7 Potion IX |
| Potion XI | x10 Potion X |