Updated: August 4, 2025
patchbutton is the latest code!
Grab the latest Undertale RNG codes and forget all about puzzles and battles. There are no huge decisions to be made here—just plenty of fun with a bunch of other players as you try to get the best Auras and craft the coolest Gear.
Crafting requires plenty of resources, so it's good news that you can use Undertale RNG codes to get a bunch of them for free. You can also gain some rare Auras this way. If you want to check out another Undertale-inspired Roblox title, drop by our article on Undertale World codes and discover all the freebies we've got in store for that game as well!
All Undertale RNG Codes List
Active Undertale RNG Codes
| patchbutton | Redeem for rewards (New) | |
| saintstinks | Redeem for 3 Tastes of Heaven (New) | |
| buttonhuntv3 | Redeem for 3 Hotdogs (New) | |
| mikomoment | Redeem for 2 Hotdogs (New) | |
| chaosmoment | Redeem for 2 Tastes of Heaven (New) | |
| chaosmomentagain | Redeem for 1 Monster Candy (New) | |
| ihatechaos | Redeem for 1 Monster Candy (New) | |
| sneakpeeks40 | Redeem for 3 Heavens and 2 Niko??s (New) | |
| sneakpeeks30 | Redeem for 3 Heavens and 2 Niko??s (New) | |
| sneakpeeks20 | Redeem for 3 Heavens and 2 Niko??s (New) | |
| ilovechaos | Redeem for 3 Hotdogs | |
| ilovechaos2 | Redeem for 2 Hotdogs | |
| ilovechaos<3 | Redeem for 3 Tastes of Heaven | |
| sorryforissuesv2 | Redeem for 5 Hotdogs | |
| shutdownnumber37 | Redeem 3 Hotdogs | |
| shutdownnumber36 | Redeem 5 Hotdogs | |
| shutdownnumber35 | Redeem for 2 Niko??s | |
| newupdate | Redeem for 2 Niko??s and 2 Heavens | |
| recoverplsniko | Redeem for 5 Niko??s | |
| roaringupdate | Redeem for 10 Niko??s (New) | |
| 1qwerty23niko32hi2 | Redeem for a Secret Aura | |
| balances | Redeem for Free Rewards | |
| bugfixes | Redeem for 3 Tastes of Heaven | |
| celebrationv3 | Redeem for a Celebration Aura | |
| yayupdate | Redeem for 5 Tastes of Heaven |
Expired Undertale RNG Codes
How to Redeem Codes in Undertale RNG
Follow the steps in our guide below to redeem your Undertale RNG codes:
- Run Undertale RNG in Roblox.
- Press the ACT button in the bottom-right corner.
- Choose Info from the menu on the right.
- Open the Extras tab.
- Click on Codes.
- Input a working code into the Enter code box.
- Hit Redeem to collect your free goodies.
How to Get More Undertale RNG Codes
You can drop by the Skittle Souls Discord server, the developer's X profile (@TheProjectSouls), the Undertale RNG Guilded server, and The Project Soul Roblox group to look for Undertale RNG codes on your own. If you want to skip having to dig through all these places, bookmark our article and make it your primary resource for the latest code drops. You can rely on our list to always be up to date!
Why Are My Undertale RNG Codes Not Working?
Spelling errors are the most common problem that makes it seem as if your Undertale RNG codes are invalid. It's best that you copy/paste everything with the help of our article instead. Still, if you encounter a code that is truly expired, drop us a note in the comments, and we'll act on it as soon as possible.
What Is Undertale RNG?
Undertale RNG is a relaxing little Roblox experience inspired by the wonderful worlds of Undertale and Deltarune. Roll for various Auras, collect all sorts of Items and craft fabulous Gear for your character. You can complete various Quests to get all kinds of rewards. Spend your time in this much-beloved universe by relaxing instead of solving puzzles and choosing a moral route to take.
Undertale RNG FAQ
It's quite possible that you've made a typing mistake. If not, then the code you're trying to redeem has expired.
There are currently no Trello or Wiki for Undertale RNG, but you can look for more information on the Discord and Guilded servers.
Your best bet is to rely on our article as your primary source of free goodies, so add it to your bookmarks.
If you need more codes for your favorite Roblox experiences, you can rely on us. Visit our Roblox Game Codes post and Roblox Promo Codes page for all the free goodies that you may need.
Vuk Vladisavljev is a codes writer for GAMURS, whom you’ll likely find hunting for new codes for our Roblox gamers. He enjoys scraping the furthest corners of Fallout: New Vegas or having an existential crisis in Disco Elysium. He’s been gaming for almost 25 years and can’t imagine life without dogs, loud music, or his PC rig.