Undertale RNG Codes (August 2026)
Undertale RNG codes pay out free in-game goodies to help you along as you roll. Nothing wrong with a little boost early on.
If you know Undertale and Deltarune, this Roblox spinoff will click fast. You roll for custom auras (there are well over a hundred and counting), take on PVE fights out in Snowdin and Castletown, complete missions, use abilities, and craft your way toward better gear. The codes are a solid way to stock up before you sink hours into hunting the rarest auras. Punch them in soon, since these expire and stop working once they do.
Working codes are listed right below.
Quick Answer: There are 4 active codes for Undertale RNG right now. They’re case-sensitive, so copy them straight from the table.
Updated August 10, 2026. Freshest code right now is duckhuntfix, checked today. Expired Undertale RNG codes are kept below for reference.
Working Undertale RNG Codes
Below are the Undertale RNG codes that work right now. Redeem early; most drop off within a few days.
| Code | Copy | Rewards |
|---|---|---|
duckhuntfixNEW | Freebies | |
npcfixNEW | Freebies | |
jaronaNEW | Freebies | |
summereventpatchNEW | Freebies |
How to Redeem Your Undertale RNG Codes
There is 1 way to redeem codes in Undertale RNG:
Method 1: Redeem Undertale RNG Codes
- Tap the ACT button located in the bottom right corner, then select the Info button.
- Select Codes, type an active code into the Enter code text box, and press the black/white Redeem button.
- Your free code rewards arrive right away if the code hasn’t expired.
- Otherwise, tell us in the comments!
Where to Find More Undertale RNG Codes
New codes usually surface first in the official Undertale RNG Discord, buried in announcement posts and event pins that tend to go up alongside updates or milestone celebrations. If digging through channels isn’t your thing, this page is updated daily, so you can just check back here instead.
Expired Undertale RNG Codes
71 expired codes — these no longer work. Listed for reference.
Show all 71 expired Undertale RNG codes
| Expired Code | Was |
|---|---|
meowmeowmeow | Freebies |
updatesoon | Freebies |
blametesters | Freebies |
eastereaster | Freebies |
eastereventpart2balances | Freebies |
eastereventbugfixes | Freebies |
eastereventpart2 | Freebies |
easterevent2026 | Freebies |
secondchaosfullevent | Freebies |
easterevent | Freebies |
merchant0stockfix | Freebies |
souladjustment | Freebies |
aprilfools3 | 10 Heavens |
aprilfools | 15 Heavens |
aprilfools2 | 15 Heavens |
7april7fools7 | April fools aura, title, gear | 50 k DD$ |
soulsrollbugfix | 160k DD$ |
chaosupdate | Freebies |
soulsssssssssssssss | Freebies |
soulsfreerolls | 100 k DD$ |
soulsfreeupgrades | 50 k DD$ |
chaoscode | 100 DD$ | 15 Heavens |
greensmells | freebies |
greensupersuksatcode | freebies |
chaosheaven | freebies |
newheavens | freebies |
minipatch2026 | freebies |
mttquestbugfixes | freebies |
newgear2026 | freebies |
sneakpeek | 100-1000 Snowflakes | 10 Heavens) |
10kgroupmembers | freebies |
quickfix | freebies |
halloween2 | freebies |
halloween! | freebies |
november_3rd | freebies |
halloweensoon | 3 Heavens |
eventbugfixes | 1000 Lucky Chocolate {event currency} |
4mevent | 5 heavens |
4mvisitsv1 | 300 Lucky Chocolate {event currency} |
bugs | freebies |
solarscriptingmoment | freebies |
solarscriptingmomentv2 | freebies |
solarscriptingmomentv3 | freebies |
solarscriptingmomentv4 | freebies |
solarscriptingmomentv5 | freebies |
delayupdate | freebies |
delayupdatev2 | freebies |
almostmonthdelay | freebies |
buttonhuntv3 | 2 Niko’s and 2 Heavens |
chaosmoment | 2 Niko’s and 2 Heavens |
mikomoment | 4 Niko’s and 1 Heavens |
patchbutton | freebies |
chaosmomentagain | freebies |
1qwerty23niko32hi2 | |
solarbugs | |
bugfixesv2 | |
ilovechaos | freebies |
ilovechaos2 | freebies |
goop | freebies |
sorryforissuesv2 | freebies |
shutdownnumber37 | freebies |
shutdownnumber36 | freebies |
shutdownnumber35 | freebies |
roaringupdate | 10 niko?? |
recoverplsniko | 5 niko?? |
newupdate | 2 niko??, 2 heaven |
soongoal | x1 Monster Candy |
balances | tons of freebies |
bugfixes | x3 Tastes of Heaven |
celebrationv3 | YIPEEEButOnceAgain?????? Aura |
yayupdate | x5 Tastes of Heaven |
How does rolling for auras work in Undertale RNG?
Undertale RNG is all about rolling for over 100 custom auras themed around Undertale and Deltarune, with rarer ones being much harder to land. Codes can give you increased luck, which improves your odds of hitting the better auras early on, so redeeming them before you grind is worth it. You can also complete missions, craft items, and collect gear along the way.
