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Pet Simulator 99 trade calculator

Public sources checked

The Trading Plaza and the Trading Terminal are how booth trades work. Coins are not the thing you put on one side of a pet trade. This form only subtracts two PS99RAP normal readings. If the pets in the window are golden, rainbow or shiny, the number is the wrong row and the gap is noise.

PS99RAP normal readings used by the form, 2026-11-02
ItemPS99RAPStatus
Huge Cat normal13,591,131,9611 source
Huge Pixel Griffin normal22,917,6151 source
Lucki Cat normal751 source
King Cobra normal1,2341 source
Damage XI Potion85,5771 source
Huge Lucky Sticky Slime15,699,5931 source
Titanic Lotus Otter3,309,212,6141 source

Add the quantities in each offer. Values are dated PS99RAP readings in diamonds; extra diamonds are added at face value.

You give
You receive

Enter quantities to compare offers.

A fair trade is not a formula the studio publishes. Demand, exists count and whether you need the pet all sit outside the subtraction. Cash-for-pet offers and off-site middlemen are the scam pattern Roblox warns about. Do the trade in the plaza window, and walk away from a Discord that wants the pets first.

Castle area image from the Pet Simulator wiki
Castle hub, where the plaza portal is documented.
Everything YOU Need to Know in the PSX CLASSIC Event! (PS99) by oMinertjee, uploaded 2026-10-25. The player loads after a click.
New pets shown in the Update 100 notes

Questions

Does this say a trade is fair?

No. It shows the gap between two dated RAP numbers. Variant mismatch makes the gap meaningless.

Where is the terminal?

The Trading Plaza, opened from The Castle after the rebirth key. See the Castle page.

Sources

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