Codes ยท Roblox (Android, iOS, Windows, Xbox)
Ultimate Tower Defense Codes: Active and Expired (June 2026)
Last checked June 21, 2026 (UTC)
Ultimate Tower Defense codes drop around updates in this anime tower defense game on Roblox, and most of them hand you free Gems and Gold. I track the working ones here, and we refresh the list whenever new ones land.
Ultimate Tower Defense codes are strings the Ultimate Tower Defense team posts on the official Discord and during update events for free Gems (the summon currency), Gold, and reroll or boost items. Ultimate Tower Defense, or UTD as everyone calls it, is an anime crossover tower defense game where you summon units and place them along the path to stop the waves. Gems summon new units, Gold upgrades and places them mid-match, and rerolls tune a unit's traits. The whole grind is about building a strong roster of meta units, and codes feed your summons toward that.
Quick tip. Honestly, spend your code Gems summoning on a rate-up banner for a meta unit instead of rolling the second you have Gems. A handful of top-tier units carry the hardest stages and raids, while a wide bench of low-tier units just leaves gaps your defense can't cover.
New Ultimate Tower Defense codes show up with major updates, new unit banners, and milestone events. They expire fast and they can break on a big update. You redeem them in game through the settings menu's code option, and they're case sensitive, so paste to be safe.
- Redeem in game through the settings menu's code option.
- Most codes give you Gems, Gold, and rerolls.
- They can break when a major update goes live, so redeem early.
- Each one is single use per account.
- Capitalization matters. Use the Copy button so you don't fat-finger it.
Active Ultimate Tower Defense codes (20)
Tap the Copy button next to each code. They're case sensitive, so paste rather than type. And redeem early, because these can break on a major update.
| Code | Reward |
|---|---|
| ClassicReworkHype New Expires soon | Free rewards |
| UpdatedBanner2026 Expires soon | Free rewards |
| ThankYouForFeedback2026 Expires soon | Free rewards |
| ThisMeansGoodbye.. Expires soon | Free rewards |
| EidMubarakEveryone! Expires soon | Free rewards |
| BattlepassSeason9! Expires soon | Free rewards |
| HeresSomeTraitRerolls! Expires soon | Trait rerolls |
| BackToTheDungeons! Expires soon | Free rewards |
| VisitingFutureCity! Expires soon | Free rewards |
| UltimateApril2026Delay Expires soon | Free rewards |
| Easter2026 Expires soon | Free rewards |
| Conan! Expires soon | Free rewards |
| BattlepassSeason8! Expires soon | Free rewards |
| NearlyNewYear2026! Expires soon | Free rewards |
| HappyNewYearEveryone! Expires soon | Free rewards |
| MovingDay! Expires soon | 40 Trait Rolls |
| PlayersMayCry Expires soon | 90 Trait & 50 Perk Rerolls, 1 Soul Essence |
| resetModifier Expires soon | Removes gold modifiers |
| balloon Expires soon | Free rewards |
| Update42 Expires soon | Free rewards |
If a code says invalid, it either expired or broke with an update. Check the official Discord for the current set.
Expired Ultimate Tower Defense codes
Skip these. They expired after past updates and milestones, so there's nothing left to grab.
| Code | Reward | Expired |
|---|---|---|
| Release | Launch Gems | 2025 |
| 500KLikes | Milestone Gems | 2025 |
| WinterUTD25 | Holiday Gold | January 2026 |
How to redeem Ultimate Tower Defense codes
Redemption all happens in game through the settings menu. There's no web portal. Your Gems and Gold apply the moment you redeem.
- Launch Ultimate Tower Defense inside the Roblox app and load into the lobby.
- Open the settings menu.
- Find the code entry box.
- Type the code exactly as shown, case and all.
- Confirm to redeem. Your Gems, Gold, and rerolls apply instantly.
If a code gets rejected, it usually expired or broke with a recent update. Since these codes are case sensitive, paste from the Copy button to rule out a typo.
Ultimate Tower Defense codes FAQ
What do codes give you in Ultimate Tower Defense?
Mostly Gems, Gold, and rerolls. Gems summon new units from the banners, Gold upgrades and places units mid-match, and rerolls tune a unit's traits. The rewards feed your summons and help you build a roster for the harder stages.
How should I spend code Gems?
Summoning on a rate-up banner for a meta unit. A few top-tier units carry the hardest stages and raids, while a wide bench of low-tier units leaves gaps your defense can't cover. Save your Gems for the banners with strong units.
Why does my code keep failing?
Usually one of three things. It expired or broke with a recent update, you mistyped it (they're case sensitive), or you already redeemed it. Paste from the Copy button and check the Discord for the current version's codes.
Why do codes break on updates?
UTD ties its codes to specific versions. When a major update or new banner goes live, the old ones often stop working. That's why the list turns over with each patch, and why you should redeem active codes the day you find them.
What do rerolls do?
Rerolls change a unit's traits, which boost stats like range, damage, or cost. A good trait can lift a unit from average to meta, so the rerolls from codes let you tune your best units without grinding the in-game reroll currency.
Where do I find the newest Ultimate Tower Defense codes?
The official Ultimate Tower Defense Discord is the place to watch. New codes drop there with updates, new banners, and milestones. The game's Roblox page lists them too, but the Discord usually posts first with the patch notes.