In Roblox Undertale Adventures TD, you play a tower defense game with characters from Undertale. Defend your base against monster waves by placing units. Level them up to boost their strength and unlock special traits to improve their abilities against tougher enemies!
Get free Rerolls, Fragments, and other items in Undertale Adventures TD using redeem codes for an early advantage. Searching for valid codes yourself is time-consuming, but we’ve collected working ones so you can instantly boost your progress without hunting!
All Codes for Undertale Adventures TD List
Active Undertale Adventures TD Codes (Working)
- THANKYOU10kMEMBERS – Redeem code for freebies (NEW)
- THANKYOU12MILLIONVISITS – Redeem code for 1 Magu, 1 Gun, 1 Justice Vial
- JUNE10UPDATE – Redeem code for Trait Rerolls, Soul Fragments, and more
Find codes for a bunch of other games in our Roblox Games Codes page.
Expired Undertale Adventures TD Codes (Not Working)
- HOTLANDS2025
- WINTER2025
- WELOVEUAPLAYERS
How to Redeem Undertale Adventures TD Codes
To redeem codes in Roblox Undertale Adventures TD, you will need to follow these steps:
- Press the Codes button on the right side of the screen.
- Enter a working code in the Enter Code text box and hit the Enter/Return key on your keyboard.
- You’ll get your free code rewards instantly if the code is still active.
- If not, let us know in the comments!
Be sure to use codes from our Undertale Adventures TD list quickly, as they may expire soon.
If it’s a brand new code that doesn’t work, try closing out of the game and re-opening it. This will put you in a new server, which could have an updated build of the game where the code will be working!
How to Get More Undertale Adventures TD Codes
To make sure you never miss new Undertale Adventures TD codes, I recommend regularly checking the game’s official pages:
- Bookmark this page (press Ctrl + D) and check back for updates!
- Join the Side Productions Roblox Group
- Join the Side Productions Discord
Why Are Undertale Adventures TD Codes Not Working?
If an Undertale Adventures TD code isn’t working, here’s what to check:
- Mistakes Happen: Double-check if you’ve typed the code exactly right. It’s easy to miss a letter or number! Copy and paste from this guide or the official game sources to be sure.
- Codes Expire: Just like milk, codes can go bad! Developers often give a heads up when a code’s about to expire, but not always. The best bet is to use codes right away when you find them.
- Capitalization Counts: Pay close attention to capital letters in the code – they matter!
- Server Glitches: Sometimes a new code might not work on every server right away. Try logging out and back in, or finding a different server to play on.
Still no luck? It might mean the code is expired. Let me know in the comments if you find any that aren’t working anymore, and I’ll update the list to help everyone out!
When Are New Undertale Adventures TD Codes Released?
While Side Productions hasn’t publicly announced a specific schedule for new code releases, I’ve noticed a few patterns based on the game’s history and community updates:
- Game Updates: Keep an eye out for new codes whenever the game receives a major update or patch. Developers often include codes as a bonus for players.
- Special Events: Events like holidays and milestones often trigger code releases. Follow the official game channels for announcements.
- Community Goals: Developers sometimes reward players with codes when the game reaches a certain number of likes, favorites, or visits.
- Apologies or Compensation: Occasionally, codes are released as a way to apologize for unexpected server shutdowns or game-breaking bugs.
Those are all of the Roblox Undertale Adventures TD codes we currently have listed. If you see one that we’re missing, please let us know in the comments so we can add it right away!
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