Ultimate Tower Defense Codes September 2025

Ultimate Tower Defense (UTD) is one of the most popular Roblox tower defense games. In this game, you place units on the battlefield to defend against waves of enemies, while outside of matches you can fish, use the time machine, and summon powerful anime-inspired heroes.

The main goal for most players is to unlock stronger units, and the best way to do that is through summoning. To make the process easier, you’ll want to use Reroll Potions, Gold boosts, and free units, all of which can be obtained by redeeming the latest Ultimate Tower Defense codes.

The developer, Ghostworks, usually shares codes on Twitter and the official Discord server. To save you time, we’ve gathered all the working and expired codes right here.

Ultimate Tower Defense Codes

• BattlepassSeason6 – 50 Perk Rerolls, 50 Trait Rerolls, 2 Lost Chests (NEW!)
• resetModifier – Reset current Gold modifier (reusable) (NEW!)
• Update42 – Rewards (requires level 10+)
• 1bVisits – Rewards (requires level 30+)
• SubscribeToAlopekForShinyRimuru – Shiny limited Rimuru unit

How to Redeem Codes in Ultimate Tower Defense

Not sure how to redeem? Just follow these steps:

1. Launch Ultimate Tower Defense on Roblox.
2. Tap the Twitter icon button on the left side of your screen.
3. Enter one of the codes into the text box.
4. Press Redeem and your rewards will be added automatically.

Using Ultimate Tower Defense codes is one of the easiest ways to stock up on perks, rerolls, boosts, and even exclusive units without spending extra time grinding. Keep an eye on updates, since the developer regularly adds new codes with each major patch.