Grand Theft Tower Defense on Roblox uses limited-time codes that grant Blood Diamonds and other rewards to speed up your early progress.
Updated: November 20, 2025.
- Removed "ZombieMode" from active codes list.
How to redeem codes
Step 1: Launch Grand Theft Tower Defense on Roblox and wait until you are fully loaded into the main lobby.
Step 2: Look at the left side of the screen for the Shop button and click it to open the Shop window.
Step 3: Scroll to the very bottom of the Shop window until you see the text field for entering codes.
Step 4: Click inside the Enter Code Here box, then carefully type or paste your code exactly as given.
Step 5: Press the green Redeem button and wait a moment; if the code is valid and not expired, the rewards will be added to your account automatically.
Step 6: If a code you are sure is valid does not work, leave the experience, rejoin a fresh server, and try the same code again.
Expired codes
ZombieMode— 1 Blood Diamond (requires level 10 to redeem)
Why codes might not work
- The code has expired. Grand Theft Tower Defense codes are time-limited and can stop working without much warning.
- There is a typing mistake. Codes are case-sensitive, and extra spaces or wrong characters will cause an error.
- The code was already redeemed on your Roblox account. Most codes can only be used once per account.
- You are on an outdated or bugged server. Leaving the experience, joining a new server, and trying again can sometimes fix this.
Where to find more codes
New Grand Theft Tower Defense codes are usually shared through the game’s official community channels and update announcements. To catch them early, you can:
- Check the Grand Theft Tower Defense experience page on Roblox for update notes and code drops.
- Join the official Guns and Money Roblox group at https://www.roblox.com/communities/35959879 for in-group posts and announcements.
- Join the Grand Theft Tower Defense community Discord server at https://discord.gg/5DpMd2Ge to read news in the update and codes channels.
Bookmark this page — code lists here are reviewed and updated regularly as new information becomes available.
Remember that Grand Theft Tower Defense codes are case-sensitive and usually only work for a short time, so redeem them as soon as you see them. Avoid any third-party “code generator” or “free Robux” sites; they do not provide real codes and can put your Roblox account and personal data at risk.
