How to Trade in Pet Simulator 99: The Complete Guide

Pet Simulator 99 gives players several built-in tools for trading pets and items, all without ever leaving the game's own systems. Knowing how each tool works, from turning trading on or off to using the terminal to track down a seller, makes the whole process faster and helps you avoid a bad deal.
In this article, we'll explain how trading works in Pet Simulator 99, covering the trading feature itself, the mail system, the trading index and lobby, how to tell if a trade is fair, and the terminal that ties the entire system together.
How to Trade With Other Players
Before you can send or receive a trade, make sure the trading feature is turned on. It only takes a moment to check, and it's the first thing worth looking at if requests aren't coming through.
Double-tap or click on a player to open their profile, then select the trading option from the profile menu to start a trade with them.
If you don't want to receive trade requests, open your settings and turn trading off.
Turn trading back on to restore your ability to send and receive requests immediately.
Keep in mind that turning trading off blocks all incoming requests, not just from strangers, so switch it back on before trying to trade with a friend.
Other Trading Options in PS99
PS99 offers multiple ways to trade with other players. These include the default trading system that we discussed earlier, the mail system for sending items to players who aren't nearby, the trading plaza for browsing and searching, the Auction Board for bidding on items in real time, and the terminal for tracking down exactly what you're looking for. Each one is covered in detail below.
1. The Mail System

The mail system is the easiest way to send items or currency to another player when you can't meet up with them in person, or when they're offline.
Head to the spawn of the world you're currently in to find the mailbox, whether you're sending or claiming an item.
Select the recipient, then choose the item or amount of currency you want to send.
Confirm the delivery to send it, regardless of where the recipient currently is in the game.
Check your inbox regularly, since anything sent to you sits there until you claim it into your inventory.
Adjust your mailbox settings to control who can send you mail, such as friends only or everyone.
Mail makes it easy to send items or currency straight to a friend, even if they're offline or on the other side of the map.
2. Trading Plaza
Most trading in Pet Simulator 99 happens in the trading lobby, but you'll need to unlock it first.
Unlock the trading plaza, then look for a small castle in the terrain around World 1, Area 3, specifically on the left side.
Enter the castle. The portal to the trading lobby is right ahead of you.
Step through the portal to enter the trading lobby.
Set up a booth to display the items you want to sell.
Walk around and check other players' booths to see what they're offering.
The trading lobby is where most of the actual buying and selling happens, so it's worth spending time browsing booths even if you're not ready to trade yet.
3. Auction Board

Above the booths directly in the trading lobby, you'll find billboards running live auctions for items players have listed.
Look above the booths in the trading lobby for billboards displaying active auctions.
To list an item, open a billboard and select "List Item."
To bid, click the billboard for the item you want and place your bid using gems.
Watch the 60-second timer. Players can keep raising their bids until it runs out.
If you're the highest bidder when time expires, the item transfers to you automatically, even if you're offline. It'll be waiting when you log back in.
If no one bids before the timer ends, the item returns to its original owner at no cost.
If your item sells, 1% of the final price goes toward tax, so factor that in when deciding on an item to list.
4. The Terminal

The terminal is what separates Pet Simulator 99's trading system from most other Roblox games, and it's worth learning early.
Open the terminal from within the trading plaza to see every pet and item in the game listed with its current price.
Search for a specific item using the terminal's search bar.
If a player is currently selling that item in a booth, tap or click it to teleport directly to them.
Once you've loaded into the lobby, you'll find the booth with the item you want right in front of you. Open the booth to buy the item, and you're all set.
This removes most of the guesswork from finding a seller and leaves you more time to actually play, instead of wandering the lobby hoping to spot the right listing.
How to Know If a Trade Is Good
Not every trade is a fair one, and Pet Simulator 99 gives you the tools to check before you commit to anything.
Hover over any item to see its value listed in gems, the game's standard measure for comparing worth.
In the trading booth, check the listed price of your item against the price of the item you're receiving.
Weigh both gem values against each other before confirming. A fair trade means the totals on each side are close.
Watch for the game's own verdict. It labels the trade for you, showing a message when the deal is good and red text reading "Bad Deal" when it isn't.
A lower value isn't always a bad trade if you're after a specific pet rather than raw worth, but checking the numbers first means you'll never be caught off guard.
Final Words
Pet Simulator 99's trading system brings together several tools, from direct trades and mail delivery to live auctions and the terminal, all built to make finding a fair deal simple. Once you're familiar with the trading feature, the mail system, the trading plaza, auctions, and the terminal, exchanging pets and items becomes a quick part of the game instead of a chore.
Frequently Asked Questions

Written by
Ziad is a content writer at BloxSwaps, covering Roblox games through detailed guides and tier lists. With a focus on breaking down game mechanics and ranking characters, weapons, and items, Ziad helps players make sense of what's actually worth their time and Robux. When not writing, Ziad stays on top of the latest Roblox updates to keep every guide accurate and up to date.
