25x Soul Fragments, 10x Temmie Flakes III, 1x Bravery Vials, 5x Gaster Hands, 1x Temmie Flakes IV, 10x Perfect Souls, 1,023x Souls, 1,023x…
Unverified Reported by 1 source NEW
Oct 19
Undertale Adventures X Codes (October 2026)
There are no verified working Undertale Adventures X codes right now; 4 codes are unverified. Check the table for status and rewards.
Undertale Adventures X codes
No working codes right now — we check daily. Last checked Oct 22, 2026, 10:23 UTC
50x Trait Rerolls, 15x Gaster Hands, 5x Glamburger, 1x Temmie Flakes V, 5x Face Steak, 1x Butterscotch Pie, 1x Abandoned Quiche, 5x…
Unverified Reported by 1 source NEW
Oct 19
50x Trait Rerolls, 15x Gaster Hands, 5x Glamburger, 1x Temmie Flakes V, 5x Face Steak, 1x Butterscotch Pie, 1x Abandoned Quiche, 5x…
Unverified Reported by 1 source NEW
Oct 19
25x Trait Rerolls, 3 Gaster Hands, 1,000x Souls
Unverified Reported by 1 source NEW
Oct 16
All 5 expired codes
0 verified · 4 unverified
Codes are case-sensitive. Copy them from here instead of typing.
On this page
How do I redeem Undertale Adventures X codes?
Open Undertale Adventures X, follow the steps below, paste a code exactly, and redeem it for the listed reward.
Open Undertale Adventures X on Roblox
- Launch Undertale Adventures X on Roblox
- Click the Codes button on the right side of the lobby
- Paste the code exactly (capitals and ! matter)
- Press Enter / Redeem
Expired Undertale Adventures X codes
5 expired · show
| Code | Expired |
|---|---|
THANKYOUFORWAITING Tracked since Oct 15, 2026 | Oct 15, 2026 |
2KCCU! Tracked since Oct 15, 2026 | Oct 15, 2026 |
FREESTUFF! Tracked since Oct 15, 2026 | Oct 15, 2026 |
TRADINGSOON! Tracked since Oct 15, 2026 | Oct 15, 2026 |
MONEYTONIGHT Tracked since Oct 15, 2026 | Oct 15, 2026 |
When do new Undertale Adventures X codes come out?
We've tracked 4 codes since Oct 15, 2026; 4 new since then; new codes have appeared about every 1 day.
Save this game on this device to see new codes under Your games next time.
How codes are usually released
Active freebie codes reported on Game Code Guides / GamesRadar+ (Oct 2026: 2KCCU! / FREESTUFF!)
New codes have appeared about every 1 day.
FAQ
What are the working Undertale Adventures X codes right now?
As of Oct 20, 2026, there are no verified working Undertale Adventures X codes on CodesDex right now; 4 codes are unverified. Check this page again soon for new drops after updates and events from the developers.
How do I redeem codes in Undertale Adventures X?
To redeem Undertale Adventures X codes, follow the in-game steps on this page. Launch Undertale Adventures X on Roblox Click the Codes button on the right side of the lobby Paste the code exactly (capitals and ! matter) Press Enter / Redeem Codes are case-sensitive, so paste them exactly as shown.
Why is my Undertale Adventures X code not working?
A Undertale Adventures X code may fail if it expired, was typed with the wrong case, already used on your account, or needs a higher level or a fresh server. Rejoin the game, copy the code again from the Verified list, and try once more.
When do new Undertale Adventures X codes come out?
We've tracked 4 codes since Oct 15, 2026; 4 new since then; new codes have appeared about every 1 day.
Can Undertale Adventures X codes give you Robux?
No. Undertale Adventures X codes only give in-game items, boosts, or cosmetics inside that experience. They never grant Robux, premium currency for the Roblox platform, or account credit. Use only official redeem flows inside the game.
Is Undertale Adventures TD the same as Undertale Adventures X?
Yes. Undertale Adventures X is the current name for the experience previously known as Undertale Adventures TD. Codes listed on this page apply to the same game; use the title you see in Roblox when searching or joining.
About Undertale Adventures X
Undertale Adventures X is a Roblox Undertale tower defense by Side Productions (formerly Undertale Adventures TD). Defend your base with units and traits. Codes grant freebies and rerolls — redeem via the Codes button on the right side of the lobby