Pet Simulator 99 codes hand out coins, gems, and pet eggs — pretty standard for the genre. The trick is that most codes expire within a week or two, so checking right after a new update drops is when you will find the best ones. Here is what is working right now.
| Code | Reward | Status |
|---|---|---|
| PET99_UPDATE | 5,000 Coins | Active |
| PET99_GEMS | 100 Gems | Active |
| PET99_EGGS | Golden Egg | Active |
| PET99_BOOST | 2x Coins 30 min | Active |
| HAPPY_PETS | 3,000 Coins | Expired |
Open Pet Simulator 99 in Roblox, look for the Twitter/X bird icon on the left side of the screen, and click it. A code entry window pops up — type or paste your code in and hit redeem. You will see the rewards appear in your inventory right away. If the button is grayed out, the code probably expired.
Codes are case-sensitive, so paste them exactly as shown. Not sure where to find the code button? Our redemption guide has screenshots for the full walkthrough.
The developer, PrestonPlayz, drops new codes on his Twitter/X account and occasionally during YouTube livestreams. Joining the official Pet Simulator 99 Discord server is the fastest way to catch them before they expire. Discord announcements usually hit hours ahead of social media posts.