Undertale RNG Codes (July 2025)

We've rolled on the internet for all the latest codes for Roblox Undertale RNG, ensuring you stay ahead with our working codes list for Auras and Items!
Roblox Undertale Rng Avatar Wearing Silver Helmet Dancinhg Near Snowy Trees
Screenshot: Try Hard Guides

In Roblox Undertale RNG, roll for a wide range of custom auras based on Undertale and Deltarune. Complete missions, use abilities, craft items, and collect gear. Tons of auras are already in the game, with more being added regularly!

To get Auras and items in Undertale RNG redeem codes so you can start getting increased luck for better Auras early. It takes time to hunt down every active code, but we’ve already done all the work and gathered them here for you!

All Codes for Undertale RNG List

Active Undertale RNG Codes (Working)

  • newcube?? – Redeem code for x4 Niko?? and x8 Broken Cube Fragments (NEW)
  • soongoal – Redeem code for x1 Monster Candy (NEW)
  • balances – Redeem code for tons of freebies (NEW)
  • bugfixes – Redeem code for x3 Tastes of Heaven (NEW)
  • celebrationv3 – Redeem code for YIPEEEButOnceAgain?????? Aura (NEW)
  • yayupdate – Redeem code for x5 Tastes of Heaven (NEW)

Find codes for a bunch of other games in our Roblox Games Codes page.

Expired Undertale RNG Codes (Not Working)

  • 1qwerty23niko32hi2
  • solarbugs
  • bugfixesv2

How to Redeem Undertale RNG Codes

To redeem codes in Roblox Undertale RNG, you will need to follow these steps:

  1. Press the ACT button in the bottom right of the screen, then click on the Info button.
  2. Click on Codes, then enter a working code in the Enter code text box and hit the black/white Redeem button.
  3. You’ll get your free code rewards instantly if the code is still active.
  4. If not, let us know in the comments!

Be sure to use codes from our Undertale RNG 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 RNG Codes

I’ve had the most success finding the latest Undertale RNG codes by staying active in the game’s community, following their official pages:

Why Are Undertale RNG Codes Not Working?

Having trouble with an Undertale RNG code? Here’s some reasons why it may not be working:

  • Check for Typos: Make sure you’ve typed or pasted the code correctly. Even a tiny mistake can invalidate it. Use this guide or the game’s official channels as your source for accurate codes.
  • Expiration Date: Codes don’t last forever! Developers might announce when a code expires, but sometimes they disappear without warning. So, grab those goodies quickly!
  • Capital Letters Matter: Some codes are picky about capital and lowercase letters. Make sure you match the code exactly.
  • Server Hiccups: It’s rare, but sometimes a new code might not work right away on every server. Try logging out and back in, or hopping to a different server.

If you’ve done all this and the code still doesn’t work, it might be gone for good. But hey, leave a comment below if you find an expired code, and I’ll make sure the list is up-to-date.

When Are New Undertale RNG Codes Released?

Although The Project Soul Team hasn’t officially stated when new codes drop, I’ve picked up on some trends based on past releases and what’s happening in the community:

  • Major game updates usually mean new codes: Developers often toss in a few codes as a little extra something for players after big changes to the game.
  • Holidays and special events: Keep an eye on the game’s social media or Discord – they might surprise you with codes during holidays, and big milestones.
  • Community milestones: Sometimes, developers give out codes as a reward when the game hits certain goals, like a certain number of likes or players.
  • Server hiccups or bugs: If the game has any downtime or annoying glitches, you might get lucky and see some codes pop up as an apology or compensation.

Those are all of the Roblox Undertale RNG 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!

Mark Carpenter

Mark Carpenter

Mark Carpenter is the Managing Editor at Try Hard Guides, and main guide writer. With over five years of experience in games media, including almost three years as an Assigning Editor for Pro Game Guides, and before that a Staff Writer.

His writing and game guide work has also been featured on platforms such as Metro UK and Game Rant, along with other smaller publications. He has been a devoted gamer since the days of Amiga, with a journey spanning roughly 31 years.

Mark's future goals are to grow the Try Hard Guides network as much as possible while helping gamers everywhere with gaming guide content. When not immersed in gaming, Mark enjoys delving into the worlds of D&D (Dungeons & Dragons), strumming his guitar, and indulging in a good read. His heart belongs to RPGs, the Final Fantasy series, and The Legend of Zelda. Moreover, he has a keen affection for dogs.

Contact: mark@tryhardguides.com

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