UATUndertale Adventures TD game icon
Updated Oct 9, 2026

Undertale Adventures TD Codes (October 2026)

Checked today 2K players 8 active codes Tower Defenseby Side Productions

There are currently 8 working Undertale Adventures TD codes, including 2 new. Redeem them for free in-game rewards. Every code below was re-checked today; codes that stop working move to the Expired tab the same day.

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All working Undertale Adventures TD codes

NEW
Free reward
Added Oct 8, 2026
NEW
Free reward
Added Oct 8, 2026
Free reward
Added Aug 17, 2026
Free reward
Added Dec 21, 2025
Free reward
Added Jul 23, 2025
Free reward
Added Jun 26, 2025
Free reward
Added Jun 21, 2025
Free reward
Added Jun 21, 2025

How to redeem Undertale Adventures TD codes

  1. 1
    Launch Undertale Adventures TD
    Open Roblox and join Undertale Adventures TD. The codes box only works once you have fully loaded into the game.
  2. 2
    Find the codes menu
    Look for a Codes, Redeem or gift button. Most games put it on the side of the screen, inside the Settings menu or at the bottom of the Shop.
  3. 3
    Paste a code and claim
    Tap Copy on any active code above, paste it into the box and press Redeem. Codes are case-sensitive, so copying beats typing.
Undertale Adventures TD official Roblox thumbnail
Undertale Adventures TD on Roblox. Image: Side Productions

About Undertale Adventures TD

Developer: Side Productions · Genre: Tower Defense · Visits: 16.7M · Favorites: 35K · Released: 2024 · Last game update: Oct 8, 2026

🎉UNDERTALE ADVENTURES X IS NOW LIVE🎉 🏰A tower defense game based on Undertale 🗡️Defend your base from monsters using Undertale units 👻Level up your units and make them stronger with traits

Description from the official Undertale Adventures TD page on Roblox.

Official links

Play on Roblox ↗Side Productions on Roblox ↗Discord ↗

Undertale Adventures TD codes FAQ

What are the working Undertale Adventures TD codes in October 2026?

There are 8 active Undertale Adventures TD codes right now: FREESTUFF!, 2KCCU!, UPDSEP25!, XMASUPDATE2025, SORRYAFTERTALEDELAY, THANKYOU10kMEMBERS and 2 more listed above.

How do you redeem codes in Undertale Adventures TD?

Join Undertale Adventures TD on Roblox, then look for a Codes, Redeem or gift button. Most games put it on the side of the screen, inside the Settings menu or at the bottom of the Shop. Paste a code exactly as written and press Redeem.

Why is my Undertale Adventures TD code not working?

Codes are case-sensitive and most can be redeemed only once per account. Some need a minimum level, and older servers may not accept brand-new codes, so rejoin a fresh server. If a code still fails it has probably expired.

When do new Undertale Adventures TD codes come out?

Side Productions usually releases new codes with updates, events and like or visit milestones. New codes are added here within a day of release.