If you’re grinding through waves in Ultimate Tower Defense on Roblox, you’ll know how important every boost, gem, and reroll can be. Thankfully, the developers frequently release codes that reward players with free gold, gems, trait/perk rerolls, and more. This guide includes all currently working Ultimate Tower Defense codes as of December 2025.
All Active Ultimate Tower Defense Codes December 2025
Use these codes to gain powerful resources like Gold Boosts, Trait Rerolls, and special event rewards. Be sure to enter them exactly as shown—codes are case-sensitive!
| Code | Reward |
|---|---|
| TheInfallibleAssassin! | Free rewards (New) |
| HappyAnniversary2025! | Free rewards (New) |
| AnniversarySoon! | 5 hours of 3x Pumpkins (New) |
| FinalWeekOfSpooks! | Free rewards (New) |
| SaveYourPumpkins! | Free rewards |
| resetModifier | Removes active gold boosts (Reusable) |
| brokenGamepassCode | Free rewards (Gamepass holders only) |
| SummerCalendar2025 | 75k Gold, 33 Perk Rerolls, 33 Trait Rerolls, 10 Impure S |
PlayStation DualSense Wireless Controller – Chroma Teal
Tip: Use the trait and perk rerolls strategically during power leveling phases or before attempting high-difficulty raids.
How to Redeem Codes in Ultimate Tower Defense
Redeeming codes is quick and easy. Just follow these steps:
- Open Ultimate Tower Defense in Roblox.
- Click on the Twitter bird icon on the left side of your screen.
- Enter or paste one of the active codes into the text box.
- Hit Redeem and enjoy your free rewards.
Make sure to copy and paste the codes to avoid typos, especially since many codes include special characters.
Where to Find More Codes
To stay up to date with new codes:
- Join the UTD Discord server: Codes are usually posted in the announcements section, sometimes hidden behind spoilers.
- Follow the devs on X (Twitter): Occasional sneak peeks or limited-time codes drop here.
- Bookmark this page: We’ll keep updating it as new codes release.
What Do Codes Give You?
Here’s what each type of reward means:
- Gold Boost: Temporarily increases gold earned per match.
- Gems: Used to summon new towers or buy crates.
- Trait/Perk Rerolls: Let you re-roll traits and perks for better stats.
- Chests/Souls/Crates: Offer rare loot, EXP tomes, or materials to evolve your heroes.
These rewards can be essential for progressing through higher levels and challenges, especially when you’re facing bosses or multiplayer raids.
Why Isn’t My Code Working?
If a code doesn’t work, try the following:
- Double-check spelling and capitalization.
- Make sure the code hasn’t expired (some codes have short lifespans).
- Redeem codes before updates—many are event-based and expire after a new season or patch.
Ultimate Tower Defense Simulator is a Roblox experience where players use anime and superhero characters to defend against waves of enemies. Strategically place your towers, upgrade your team, and use unique hero abilities to survive escalating challenges. You can play solo or with friends, combining your towers to create unstoppable defense lines.
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Using the latest Ultimate Tower Defense codes can significantly improve your chances of surviving the tougher waves and farming stronger towers. Make sure to redeem them before they expire and keep an eye on updates during holidays or milestones.
