Looking for the latest Undertale RNG codes? We’ve got you covered! This list includes all of the active codes that will give you free rewards like spins and gems.
If you’re actively playing other Roblox Games, be sure to check out the rest of our Roblox code guides to help make life a little easier
What is Undertale RNG?
“Undertale RNG is an exciting and unpredictable Roblox game inspired by the popular indie game Undertale. Players explore a whimsical world filled with quirky characters and challenging puzzles, all while facing random encounters and unexpected events driven by the game’s unique Random Number Generator (RNG). With every playthrough presenting new opportunities and obstacles, Undertale RNG offers a fresh and dynamic gaming experience that will keep players on their toes and coming back for more!”
There are a number of different factors that affect how far you can yeet your friend, including your running speed, your friend’s weight, and the terrain. You can also upgrade your yeeting power and unlock special pets to help you yeet your friend even further.
If you’re looking for more codes, be sure to check out our Underworld Ream Codes, Toilet Tower Defense Codes, and Peroxide Codes pages! Or have a look at our Roblox corner of the site for even more game codes and updates.
We checked for new codes on July 18, 2025!
Active Undertale RNG Codes
- balances: Redeem code for tons of freebies (NEW)
- bugfixes: Redeem code for x3 Tastes of Heaven (NEW)
- celebrationv3: Redeem code for YIPEEEButOnceAgain?????? Aura (NEW)
- newcube??: Redeem code for x4 Niko?? and x8 Broken Cube Fragments (NEW)
- newupdate: Redeem code for 2 niko??, 2 heaven (NEW)
- recoverplsniko: Redeem code for 5 niko?? (NEW)
- roaringupdate: Redeem code for 10 niko?? (NEW)
- shutdownnumber35: Redeem code for freebies (NEW)
- shutdownnumber36: Redeem code for freebies (NEW)
- shutdownnumber37: Redeem code for freebies (NEW)
- soongoal: Redeem code for x1 Monster Candy (NEW)
- yayupdate: Redeem code for x5 Tastes of Heaven (NEW)
How to Redeem Undertale RNG Codes?
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What Do These Codes Do?
Undertale RNG codes give you free in-game items and bonuses that can help you progress faster. These rewards can include coins, boosters, and even new units. However, keep in mind that these codes can only be redeemed once, so it’s important to claim them when you’re ready to maximize their benefits.
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How to Get More Codes
The best way to find new Undertale RNG codes is to keep an eye on the official Roblox Undertale RNG page. The developers often post new codes there, as well as news and updates about the game. You can also check this wiki regularly for updates on the latest codes.
