Undertale Adventures TD Codes (June 2025)

Redeem these latest Undertale Adventures TD codes and get free Justice Vials, Trait Rerolls, and Magu Fruit.

Undertale Adventures TD (Image via Roblox)
Undertale Adventures TD (Image via Roblox Corporation)

In Undertale Adventures TD, you’re tasked with defending your base using iconic characters from the Undertale and Deltarune universes. But before you can summon Sans or Frisk to the battlefield, you’ll need resources, and that’s where codes come in. These redeemable codes give you free items like Trait Rerolls, Magu Fruit, and Justice Vials that are vital early on.

Whether you’re brand new or already knee-deep in rerolls, these codes offer a serious boost. Keep checking back, because new codes can drop with updates or milestones. Below is your complete and regularly updated list of active and expired Undertale Adventures TD codes.

Active Undertale Adventures TD Codes

CodeRewardStatus
THANKYOU12MILLIONVISITSJustice Vial, Magu Fruit, and Empty GunActive

Inactive Undertale Adventures TD Codes

CodeRewardStatus
JUNE10UPDATEUnknownExpired

How To Redeem Undertale Adventures TD Codes

Redeeming codes for rewards (Image via Roblox)
Redeeming codes for rewards (Image via Roblox Corporation)

Follow these steps to claim your free rewards:

  1. Open Undertale Adventures TD on Roblox.
  2. Tap the white bird icon on the right side of your screen.
  3. In the ‘Enter Code’ field, type in or paste your working code.
  4. Press the ‘Enter’ key on your keyboard to redeem.

How To Use the Free Rewards Obtained From the Undertale Adventures TD Codes

Inventory (Image via Roblox)
Inventory (Image via Roblox Corporation)

Your redeemed items will show up in your inventory immediately after activation:

  • Justice Vials and Trait Rerolls can be used to modify or power up your units.
  • Magu Fruit is used for evolving characters or giving them additional powers.
  • Empty Guns and similar items are usually applied during battle setup or gear loadout.

Be sure to check your backpack or unit management screen to apply these rewards.

Tips To Defend Your Tower

Tower defense (Image via Roblox)
Tower defense (Image via Roblox Corporation)
  • Focus on early defense units like Frisk or Flowey for early wave survival.
  • Use Trait Rerolls wisely, save them for units you plan to main long-term.
  • Stack similar-type units near chokepoints to maximize area damage.

Where To Find New Undertale Adventures TD Codes?

For official code drops, follow these sources:

Or, just bookmark this guide; we scan all sources daily to keep it updated.

FAQs

What Are Undertale Adventures TD Codes?

They’re redeemable codes that reward you with free items like Trait Rerolls, Justice Vials, and in-game currency.

How Do I Redeem Codes in Undertale Adventures TD?

Press the bird icon in-game, enter a valid code into the text field, and hit Enter.

Why Isn’t My Code Working?

It may have expired, or you may have entered it with a typo. Always copy-paste directly from our list to avoid errors.

Does the Game Have a Wiki or Trello?

There’s currently no active wiki. The Trello board was previously public but is now closed. We’ll update this if it reopens.

How Do I Level Up Characters?

Just keep playing through campaign missions and defeating waves. Your characters gain XP automatically.

Can I Join Giveaways on Discord Without Leveling Up?

Yes, most giveaways are open to all members, regardless of your role level, unless otherwise stated.


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