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Pet Simulator 99 Codes: Active and Expired (June 2026)
Last checked May 28, 2026 (UTC)
Pet Simulator 99 codes are a closed chapter: BIG Games wound the game down in 2026 and the public drops ended with it. What survives is merch codes and a Trading Plaza that refuses to die. Here's the real picture.
Pet Simulator 99 codes are what remains of a finished program, the strings BIG Games used to hand out with updates and milestones, once good for free Diamonds, Boosts, the occasional Pet, plus merch-locked items that still exist today. Diamonds run this entire economy. Eggs, upgrades, everything routes through them, which is why those old milestone codes felt so good to grab. Boosts sped up the farming. The merch codes are the survivors: printed on physical BuildIntoGames toys, one redemption each, unlocking pets you can't get any other way.
Quick tip. let the code hunt go. It took me longer than I'd like to admit: I kept a little note of codes for months after the updates stopped, and the day I noticed the game description just said 'Thanks for playing', I deleted the note. Diamond X enchants on your best pets in World 4 are the income now, and they pay better than the codes ever did.
There's no refresh cycle left to describe. BIG Games changed the description, moved to other projects, and the public stream ended right there. New Pet Simulator 99 codes would need new updates, and those aren't coming. Merch codes still work the way they always have: printed inside a physical BuildIntoGames product, one use, tied to that purchase. That's the entire remaining surface.
- Zero active public codes. The game description literally reads 'Thanks for playing' now.
- Merch codes printed on BuildIntoGames toys are the only Pet Simulator 99 codes that still redeem.
- Each merch code works once and belongs to the product it came with.
- The Trading Plaza is still busy. Quieter game, same trades.
- For income, farm Diamond X enchants in World 4. It beats anything the codes used to pay.
Active Pet Simulator 99 codes (1)
No fresh public drops to list, and I won't invent any. The single row below is the honest remainder: merch codes printed on physical BuildIntoGames toys, each redeeming once for an exclusive pet or item.
| Code | Reward |
|---|---|
| Merch codes only Expires soon | Exclusive pets and items (printed on BuildIntoGames physical products) |
Got one of those toys? The printed code goes through the in-game merch menu. Takes under a minute.
Expired Pet Simulator 99 codes
Museum pieces. These milestone codes died with the wind-down, and no amount of retyping revives them.
| Code | Reward | Expired |
|---|---|---|
| 1B | Diamonds (1 billion visits milestone) | 2025 |
| Huge | Boosts and Diamonds | 2025 |
| Update | Diamonds and boost | December 2025 |
How to redeem Pet Simulator 99 codes
Everything happens in game, same as always. The one working route left is the merch shop, for codes that came printed on a physical product.
- Get hold of a BuildIntoGames physical product, a toy or plush with a code inside.
- Open Pet Simulator 99 in Roblox.
- Find the merch shop menu, the one with the shopping icon.
- Pick Redeem Merch Code.
- Type the printed code and confirm. The exclusive pet or item unlocks on the spot.
Every printed code is unique and single use. Once redeemed it's spent, so no sharing, no reselling, and no point buying a 'spare' off anyone.
Pet Simulator 99 codes FAQ
Are there any active Pet Simulator 99 codes right now?
Public ones, no. The only codes that still redeem are merch codes printed on physical BuildIntoGames products.
How do I earn Diamonds without codes?
Diamond X enchants, stacked on your strongest pets and ground through the late World 4 zones. It's steady rather than spiky, and over a week it quietly out-earns everything the old milestone codes ever handed out. The devs pointed players this way themselves once updates stopped.
What exactly is a merch code?
A unique string printed on a physical BuildIntoGames toy or plush. It unlocks an exclusive in-game pet or item, works once, and dies with that redemption.
Is Pet Simulator 99 dead?
Maintenance mode, not dead. Nothing new is coming, but the servers run fine and the Trading Plaza stays genuinely lively. I drop in for trades these days, not for content.
Could public codes ever return?
I'd bet against it. A 'Thanks for playing' description is about as final as a studio gets. Merch codes will live as long as the toys sell; milestone and update codes are history.
Is trading still worth it?
Yes, and it's the best reason left to log in. Huge and Titanic pets move through the Plaza constantly, so a good collection still carries real value in the player economy.