If you're trying to build a restaurant empire in Restaurant Tycoon 3, you'll want all the free Cash and Diamonds you can get. The game's promo codes are basically a helping hand while you work on making your mark in the catering business. Whether you're running a cafe, a restaurant, or some other food establishment, those extra currencies go a long way.
A fresh promo tied to the South American Food update is on the list, and it gives you a ten-minute 20% boost. That's a nice little bump, especially if you're grinding through a busy stretch.
Codes for Restaurant Tycoon 3 usually hand out Cash or Diamonds. Both are in-game currencies, and you use them to expand your diner with new purchases. You can customize everything from the furniture to the recipes you serve, which brings in customers and keeps them happy. It's important to keep things fresh in this Roblox experience, otherwise you won't get more visitors to sample your food.
The number of valid codes is usually limited. That said, developer Ultraw has been pretty active, and new promos come out on a regular basis, so there's a steady supply. So far, the codes have provided either Cash or Diamonds, so either way you're getting some bonus currency.
To redeem a code, hit the Shopping Basket icon along the bottom of the screen. That opens the Shop menu. Scroll down to the bottom and find the Redeem Codes section. Type the code into the text box, then tap the Submit button. You'll see a confirmation message if it worked. Codes aren't case-sensitive, so you don't need to worry about capitalization as long as the spelling is correct.
Most of the older codes have expired. Don't be disheartened, though, because fresh promos are revealed regularly. That's a reminder that you need to stay on top of claiming them as soon as possible before they run out.
If you're looking for rewards that apply across all experiences, there are also general Roblox promo codes you can redeem. Those won't help with Restaurant Tycoon 3 specifically, but they're worth checking out if you play other Roblox games.