Pet Simulator 99 - All Active Codes May 2026

Pet Simulator 99 is one of the most popular pet-collecting games on Roblox, with over 2.4 billion visits. Collect and upgrade a variety of rare pets, unlock new areas, trade and compete with friends, and see who can become the ultimate pet master.

Building the ultimate pet collection takes a lot of diamonds and resources, which is where Pet Simulator 99 codes come in. They can get you free pets, hoverboards, potions, diamonds, and more—helping you quickly expand your collection and become a true pet master.

We verify and update every active code daily, so bookmark this page and never miss a free reward. (Also need Driving Empire Codes? We've got those too.)

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All Active Pet Simulator 99 Codes for May 2026

Below are the latest Pet Simulator 99 redeem codes that can be used to claim free in-game rewards.

⏰ Last updated: May 22, 2026

Codes expire quickly and without notice — redeem them as soon as possible. Expired codes are still worth trying, as developers sometimes extend them.

We update this list regularly, but also keep an eye on the official redemption page for surprise drops.

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How to Redeem Pet Simulator 99 Codes

You can redeem Codes directly in-game through the Shop. Note: as of Update 4, code redemption is only available on PC desktops; mobile devices are not supported.

In-Game Redemption (PC Only)

1. Launch Pet Simulator 99 on Roblox and complete the tutorial to unlock the Shop.

2. Click the Shopping Cart icon (🛒) on the left side of the screen to open the Store.

   

3. Scroll all the way down to the bottom of the Store until you see the "Redeem Codes" banner.

4. Click the green "Redeem!" button. A text box will appear.

   

5. Type or paste your code exactly as it appears on the merch tag. Codes are case-sensitive — one wrong capital letter will cause an error.

   

6. Click "Redeem!" again to confirm. Your reward will be credited to your account immediately.

All Active Pet Simulator 99 Merch Codes for May 2026

Merch Codes are unique, one-time-use codes included with official Pet Simulator 99 physical merchandise purchased from the BIG Games Shop and authorized retailers. 

Here are examples of rewards historically unlocked through official PS99 merch codes:

Quick heads up: These codes come from physical merch tags. Once scratched and redeemed by the original buyer, they can never be used again. Use your code ASAP after purchase — don't share it until after you've redeemed it!

Expired Pet Simulator 99 Codes

The following codes were previously distributed but are no longer valid. We keep this list as a reference — if BIG Games ever reactivates codes for special events, we'll note it here.

Expired / Used Merch Codes (examples):

• pet-code99 - Previously distributed during early access
• pet-code2024 - 2024 promotional merch code (expired)
• PFB96CG9472D - Single-use merch code (already redeemed)
• DPETUJ44AB89 - Single-use merch code (already redeemed)
• VWJ33JE6SLED - Single-use merch code (already redeemed)
• HugeDragonPet - Huge Dragon Pet (expired)
• Fake / Invalid Codes Circulating Online:
• S7MJHEKAABC8 - Fake code; returns "Invalid Code" error
• pet-d67518012 - Fake code promoted in YouTube videos; does not work
• TitanicDragonFREE - Fabricated string; never a valid code

Why Is My Pet Simulator 99 Code Not Working?

If you're running into errors when trying to redeem a code, here are the most common causes:

• Already Redeemed: Every PS99 merch code is one-time use per account. Once a code is claimed, it cannot be used again — not even on the same account.
• Code Was Never Valid: The vast majority of "working PS99 codes" found on YouTube videos, social media, or third-party websites are completely fake. BIG Games has never released universal public codes. If it came from the internet rather than a physical merch tag, it will not work.
• Wrong Capitalization: Codes are strictly case-sensitive. A single wrong uppercase or lowercase letter will trigger an "Invalid Code" error. Always copy and paste directly from the tag rather than typing manually.
• Code Already Used by Someone Else: If you purchased secondhand merchandise, the code tag may have already been scratched and redeemed by the previous owner. Always inspect packaging before buying second-hand merchandise.
• Mobile Device: As of Update 4, code redemption is only available on PC desktop. Attempting to redeem on a phone or tablet will not work — the redemption interface simply doesn't appear.
• Old Pet Simulator X Codes: PSX merch codes and PS99 codes use separate systems. Old codes from Pet Simulator X generally cannot be used in PS99, though results have been inconsistent. Don't count on them working.

Pet Simulator 99 Latest Events and Updates (May 2026)

Game Status: "Thanks for Playing"

As of 2026, BIG Games has officially shifted focus away from Pet Simulator 99. The game's description was changed to "Thanks for playing," signaling that major content updates have concluded. However, the game remains fully playable, and its Trading Plaza ecosystem is still highly active, with Titanic and Huge pets continuing to hold significant trade value.

World 4 & Diamond X Farming

The final major content update introduced World 4 with new zones accessible via Diamond X enchants. Players looking to progress in 2026 should focus on farming these zones using Fortune Flags to maximize diamond output and keep pace with Trading Plaza inflation. Time Trial Chests from World 4 remain an active way to earn rare rewards without needing codes.

Pets GO Cross-Redemption

Players who purchase Season 3 merchandise can redeem their merch codes once in Pet Simulator 99 and once in Pets GO for Diamond Bags. This cross-game redemption was added in July 2025 via the in-game Merchandise Shop. Season 1 and 2 merch codes do not carry over to Pets GO.

Free Rewards Without Codes

Even without codes, there are ways to earn free items:

• Daily Login Streak: Log in on consecutive days for escalating rewards, including diamonds and boosts.
• BIG Games Roblox Group Rewards: Join the official BIG Games Roblox group and claim free boosts from the "Group Rewards" section on the group page.
• Time Trial Chests: Complete timed objectives in World 4 zones to earn free reward chests, including a chance at rare Rainbow Shiny Gargantuan pets.
• Trading Plaza Arbitrage: Buy Series 3 mystery eggs when prices dip, then hold them until they become legacy items for a significant value increase.

Where to Find More Pet Simulator 99 Codes?

PS99 codes don't follow a predictable release schedule, and public promo codes have never officially existed. Here are the only reliable ways to get working codes:

• Purchase Official Merchandise: Buy plushies, mystery boxes, or collectible figures directly from the BIG Games Shop or authorized retailers. Each product includes a unique scratch code tag. These sell out quickly, especially limited-edition items.
• Official Social Media: Follow BIG Games on Twitter/X (@BuildIntoGames), YouTube, and Instagram. If a public code is ever released, these channels will be the first to announce it.
• BIG Games Discord Server: The official Discord is the fastest source for game announcements. Any legitimate code drop will appear in the Announcements channel within minutes — and will burn out just as fast, so turn on notifications.
• Bookmark This Page: GamsGo monitors official BIG Games channels and updates this article as soon as any new codes are confirmed. Saving this page ensures you always have access to the latest verified information without wading through fake code videos.

Get the Latest Pet Simulator 99 Codes and Deals at GamsGo

Want to stay ahead of every PS99 code release and game update? Keep following GamsGo.

Our editorial team verifies and updates this page regularly, making sure every code listed here is tested and accurate. No guessing, no expired fake codes mixed in with real ones.

Beyond codes, GamsGo also offers top-ups for popular games at prices lower than official stores, helping you get more out of your favorite titles without overspending.

FAQ about Pet Simulator 99 Codes

Does Pet Simulator 99 Have Any Free Public Codes?

No. As of May 2026, BIG Games has never released universal public promo codes for PS99. The only working codes are single-use merch codes included with official physical merchandise. Any website or video claiming to have free working codes is spreading false information.

Where Do I Enter a Code in Pet Simulator 99?

Open PS99 on a PC → click the Shopping Cart icon → scroll to the very bottom of the Store → click the green "Redeem!" button → enter your code → click "Redeem!" again. Note: redemption is only available on PC desktop as of Update 4. Mobile devices cannot redeem codes.

Why Does My Code Say "Invalid Code" or "Already Redeemed"?

"Invalid Code" almost always means the code is fake or doesn't exist, which covers nearly every code found online. "Already Redeemed" means either you've used it before, or the code was someone else's personal merch code that got shared after they redeemed it. Only codes from sealed, unopened merchandise will work.

Is There a Super Secret Code for Preston's Shop in Area 35?

No confirmed super secret code has ever been publicly discovered. Every site claiming to have it is fabricating content for clicks. If BIG Games officially reveals one, this page will be updated immediately.

Can I Use My Pet Simulator X Merch Codes in PS99?

Generally, no — the two games have separate code systems. BIG Games once told players to "keep your codes for future games," but PS99 launched with a partial reset of merch redemption logic. Some PSX codes may work in PS99, but it's inconsistent. Test them if you have them, but don't expect them all to convert.

Are There Any Risks with Using Pet Simulator 99 Codes?

Official merch codes from BIG Games are completely safe. Avoid third-party "code generator" websites or anyone asking for your Roblox login in exchange for codes. Those are scams designed to steal your account. BIG Games will never ask for your passwo