Restaurant Tycoon 3 codes (March 2026)
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Restaurant Tycoon 3 codes (March 2026)
Redeem these RT3 codes for free Cash and Diamonds

Image credit: Ultraw

Guide
by
Amelia Zollner
Contributor Updated on March 13, 2026 Follow Roblox
Looking for Restaurant Tycoon 3 codes for Cash or Diamonds? In Restaurant Tycoon 3, you’ll build and manage your very own restaurant. It’ll be a bit small at first, seating only a few customers at a time. Don’t worry – after some hard work, you’ll expand your restaurant, grow its menu, hire employees to do the hard work for you, and even earn upgrades like a drive-thru and advertising to boost the number of customers you get, all while raising your restaurant’s star rating.
Like in most tycoon games, you’ll spend a bit of time waiting around for cash to roll in (especially once you automate the process by hiring some chefs and servers). If you’re eager to speed up the process, you can use Restaurant Tycoon 3 codes to stock up on some instant Cash and Diamonds. We’ve gone ahead and done all the hard work for you by compiling this handy list of Restaurant Tycoon 3 codes so you can get right back to your restaurant!
All new Restaurant Tycoon 3 codes
- frosting2: x5 Diamonds NEW
- moon1: x10 Diamonds
- UltrawEats: UltrawEats trophy, statue, and poster
Expired Restaurant Tycoon 3 codes
- grass99
- vip123
- horse2026
- heart5
- toytime
- soap123
- classic16
- tuna5
- gift123
- snowball
- bacon
- thanks5
- outrage
- birthday
- spook1
- milkshake
- jukebox
- itsfree
- EarlyBird
- 10million
- Beta
- Alpha
- RT3
How to redeem Restaurant Tycoon 3 codes
- Launch Restaurant Tycoon 3 in Roblox.
- Click on the shop button at the bottom of your screen.
- Scroll down to the bottom of the menu that pops up.
- Type your code into the field and hit ‘Submit.’

Image credit: Ultraw/Rock Paper Shotgun

Image credit: Ultraw/Rock Paper Shotgun
Looking for more Roblox codes to use after a long Restaurant Tycoon 3 session? Head to our guides for other games like Dress to Impress, Fish It, Uma Racing, MonsterVerze, and Brainrot Evolution.
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