The world of Roblox has received a real gift for fans of Undertale and the Tower Defense genre — meet Undertale Adventures! This game isn’t just cool, it seriously pulls you in. You fight off waves of monsters using your favorite Undertale characters as defenders. On top of that, the game features special codes that give you boosts, gold, and other useful goodies. Don’t forget to redeem them to get a solid head start! And by the way, if you’re into anime-style games, magic, or tower defense, you’ll also find other handy collections on our site — like Undertale Timeline Reset codes, Undertale Arena codes, and Anime Adventures codes, which are definitely worth checking out.
Undertale Adventures TD Codes
| Code | Rewards |
|---|---|
XMASUPDATE2025Copy | gift (NEW) |
Expired Codes
- SORRYAFTERTALEDELAY – gift
- THANKYOU10kMEMBERS – gift
- THANKYOU12MILLIONVISITS – 1 Magu, 1 Gun, 1 Justice Vial
- JUNE10UPDATE – 30 trait rerolls
How to Redeem TD Undertale Adventures Codes
- Launch Roblox Undertale Adventures on your device.
- Click the “Codes” button on the right side of the screen.
- Copy one of the codes listed above.
- Enter the code into the field and press ENTER to claim your reward.
Where to Find Codes for Underground Adventures TD
If you want to stay up to date with all the latest codes, make sure to join the Side Productions group, hop into their Discord (also Side Productions), and keep an eye on their YouTube updates.
What Undertale Adventures Is About
This is a classic tower defense game inspired by the Undertale universe. Your goal is to protect your base from endless waves of monsters by placing units from the iconic game. Each unit is unique and can be upgraded by improving stats and leveling up traits. The more you play, the stronger your team becomes. Build the ultimate squad in Underground Adventures TD, push through increasingly difficult stages, and prove that you’re a true defender of the underground.
