Universal Tower Defense (UTD) is a new anime-style strategy game on Roblox that’s already out – it just launched this December 2025! It mixes characters and settings from all kinds of iconic franchises, and like other tower defense games on the platform, it’s all about strategically placing units to keep your base safe from waves of baddies.
In line with other Roblox games, when a new title is first released, it usually gives out codes to redeem free Rerolls and Gems to upgrade new units and abilities. These codes are shared on its official Discord channel to get new players excited.
So! Here are the working codes as of December 2025. Hurry up and redeem them because they might expire soon – there’s no exact time when they’ll disappear or stop being valid.
- ThousandsOfCodes! – 800 Gems, 15 Trait Rerolls (NEW)
- MaxedOut! – 600 Gems, 10 Trait Rerolls (NEW)
- SixSeven!: 67 Trait Rerolls (NEW)
- FixingBugs! – 450 Gems, 25 Trait Rerolls
- NumberOne! – 500 Gems, 15 Trait Rerolls
- Universal! – 450 Gems, 15 Trait Rerolls
- Mainstream! – 450 Gems, 15 Trait Rerolls
- ThankYouUTD! – 400 Gems, 5 Trait Rerolls
- 40kCCU! – 4,000 Gems, 40 Trait Rerolls
- THANKYOU! – 400 Gems
- RELEASE! – 400 Gems
- UNRIVALED! – 200 Gems, 5 Trait Rerolls
- ThankYouEA! – 5k gems (Expired)
- SorryEA! – 100 trait rerolls (Expired)
- SorryEA2! – 5k gems (Expired)
- 75kLikes! – 400 Gems, 10 Trait Rerolls (Expired)
How to Redeem These Codes? Follow the instructions below:
1. Launch Universal Tower Defense in Roblox.
2. Select the ‘Codes‘ button on the right.
3. Type a code into the text box and then press the “Redeem” button.
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![Roblox game screenshot (likely a farming/crafting sim) showing a player character facing a large storage wall with color-coded slots. Left inventory panel has "Ingredients" (blue boot, green plant, tree, fruit) and "Animals" (fish, elephant). On-screen UI: "Buy/Base/Sell" tabs, resource counters (0/213 for multiple currencies), "$5M" land purchase prompt with finger icon, "Starter Pack!" icon, "Shop/Recipes/Daily" buttons, event timers, and "[G] Open Backpack" prompt. Overlay text: "craft a brainrot codes" – playful, meme-y call for viral, easy-to-remember in-game cheat codes.](https://wazzuptechph.com/wp-content/uploads/2026/01/Screenshot_20260104_105134_Roblox-450x208.jpg "Craft a Brainrot Codes, Free Items, Rewards, and How to Redeem")