Universal Tower Defense codes December 2025

Unlock loads of easy freebies, from rerolls and gems, to limited-time characters with the latest Universal Tower Defense codes on Roblox.

by · PCGamesN

December 20, 2025: Grab close to 3k more gems with two new Universal Tower Defense codes for the December 20 update.

Need some new Universal Tower Defense codes to see you through a tough challenge? As one of the last big Roblox TD games of 2025, free gems, rerolls, and upgrade materials are an essential part of the tower defense puzzle. Miss out, and you'll have to work hard to make up for time lost by not using the latest UTD codes before they expire.

Universal Tower Defense follows in the footsteps of Roblox giants, pairing pop-culture icons up and sending them on a mission to defend the homes of other characters from invading forces. Perfect placement and adaptability is key to your survival, and a quick click of the bookmark button on your browser is the easiest way to grab new codes as they come. You can also check out our Universal Tower Defense tier list for a breakdown of the best units at launch.

Universal Tower Defense codes

Here are the latest UTD codes for launch:

  • UnrivaledIsAlive - 800 gems and 20 trait rerolls (NEW)
  • ThankYouFor150k - 1.5k gems and 50 trait rerolls (NEW)
  • ThankYou100k - 100 Trait rerolls
  • HereyougoEA! - 2k gems, 20 rerolls, and 5 stat locks
  • ThousandsOfCodes! - 800 gems and 15 trait rerolls
  • MaxedOut! - 600 gems and 10 trait rerolls
  • SixSeven! - 67 trait rerolls
  • FixingBugs! - 450 gems and 25 trait rerolls
  • 75kLikes! - 400 gems and 10 trait rerolls
  • NumberOne! - 500 gems, 15 Trait rerolls
  • Universal! - 450 gems and 15 Trait rerolls
  • Mainstream! - 450 gems and 15 Trait rerolls
  • ThankYouUTD! - 400 gems and 5 Trait rerolls
  • 40kCCU! - 4k gems and 40 trait rerolls
  • RELEASE! - 400 Gems
  • THANKYOU! - 400 Gems
  • UNRIVALED! - 200 Gems and 5 trait rerolls

Once you've used up the new UTD codes, check out our list of wider Roblox codes to score some UGC you can use in any other game on the platform.

What are Universal Tower Defense codes?

UTD codes are little strings of text used by the developers of the game to award players with easy freebies. Once entered into the code redeem box, they deliver anything from gems, rerolls, and upgrade materials, to even units that might never see the light of day again.

How do I use Universal Tower Defense codes?

Despite the 99% likes counter on the game page, you don't have to jump through many hoops at all to redeem Universal Tower Defense codes. Just launch the game, choose your starting unit, click the codes button on the right, and you're good to go. Enter a working code, slap the redeem button, and the rewards will flash up on the screen.

If you want to feel a little more sociable while doing it, you can head over to Roku in the lobby. Look for the Codes banner above his head. While he says that he had codes for you, he won't actually pull up a list of redeemables for you to reference. Instead, he opens the very same code menu you get by clicking the UI button, so it doesn't really matter how you approach it.

How do I get more Universal Tower Defense codes?

New UTD codes are most likely to drop on the Universal Tower Defense Discord channel. You'll find a link to that, and the game's X and YouTube pages, at the bottom of the game page on Roblox.

Expired codes

  • ThankYouEA!
  • SorryEA2!
  • SorryEA!

If you're not up for joining yet another Discord server, don't worry. We check for new Universal Tower Defense codes each and every day to ensure the UTD code list above is as complete as the one on Discord. That's why bookmarking this page is the easiest way to grab new codes as each update drops.