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Undertale Red & Yellow (@UndertaleRY) profile picture

Undertale Red & Yellow

@UndertaleRY

An Undertale mod that adds two very special critters to the game! Mod creator and account manager: @sz_alter Profile picture and banner by @viviiyon

 Mt. Ebott
gamejolt.com/games/undertale-red-yellow/877387
Joined March 2024
  • Tweets1.4K
  • Following132
  • Followers2.4K
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Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)Photo by Undertale Red & Yellow (@UndertaleRY)
Undertale Red & Yellow version 2.1.0 is out! Featuring: - Genocide dialogue being almost entirely rewritten - New alternative Talk Sprites (and a way to add your own!) - And way more stuff! You can check out the changelog for all the details, check it out below!!
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never forget
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Did you know that there's an Undertale Red & Yellow discord server? No? I never advertise it? That's true. But there is! In case you want to get pinged when there's updates, or just want somewhere to talk about it. Or if you have a secret third reason. Link below!
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discord.gg/FjPTWDqUD7

Join the UT Red & Yellow Discord Server!

The server for the Undertale mod that mixes the world of OG Undertale and Undertale Yellow, Undertale Red & Yellow! | 1296 members

discord.com
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Undertale Red & Yellow retweeted
Undertale Red & Yellow (@UndertaleRY) profile picture
Undertale Red & Yellow@UndertaleRYAug 17
Extra, extra! New UTRY 3.0 Progress Report! Read it while it's fresh! gamejolt.com/p/august-2026-p…
Image from Undertale Red & Yellow (@UndertaleRY)
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Undertale Red & Yellow retweeted
♠︎ Kris | C0MMS OPEN (@soulx08) profile picture
♠︎ Kris | C0MMS OPEN@soulx08Aug 17
Justice meets Justice 💛 Art I did for the latest Undertale Red & Yellow Progress Report!
Image from ♠︎ Kris | C0MMS OPEN (@soulx08)
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Undertale Red & Yellow retweeted
cass☘️ semi ia (@wiltlilies) profile picture
cass☘️ semi ia@wiltliliesAug 17
heres a piece i did for the utr&y progress report! #undertaleredandyellow
Image from cass☘️ semi ia (@wiltlilies)
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Extra, extra! New UTRY 3.0 Progress Report! Read it while it's fresh! gamejolt.com/p/august-2026-p…
Image from Undertale Red & Yellow (@UndertaleRY)
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One year ago, you returned to this world; And one year ago, you sought to push it to its brink. One year ago, you were simply asked 'why'. And one year ago, you responded just as simply:
Image from Undertale Red & Yellow (@UndertaleRY)
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Art by @soulx08. Happy Anniversary 2.1.0. (Progress report still coming soon, by the way.)
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ok this is getting ridiculous who even invited all these weirdos (art by @/serv0z on Instagram & Tumblr!) #undertale #deltaruneㅤㅤㅤ
Image from Undertale Red & Yellow (@UndertaleRY)
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Thought this'd be a cute piece to have to commemorate Chapter 5 being a month old now. Progress report coming soon by the way! Finishing some things up to show off on it :)
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Undertale Red & Yellow retweeted
Dio Dionysus (@D1onysIsHere) profile picture
Dio Dionysus@D1onysIsHereJul 15
Happy non-binary day!! Here are my favorite two of them all💛❤️ #utry
Image from Dio Dionysus (@D1onysIsHere)
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Man, that was a great Deltarune chapter. It even gave me a few ideas for Undertale Red & Yellow... Anyways, applications are closing today! We'll be contacting everyone we decide to include on the team as soon as we can. Thank you to everyone that applied!
Undertale Red & Yellow (@UndertaleRY) profile pictureUndertale Red & Yellow@UndertaleRYJun 21
Also, if you haven't seen it in the Progress Report yet, we're looking for artists, spriters, and music composers! Apply if you're interested in helping out! Link: forms.gle/c1s1y35SwpJn4jo66 #undertale #utry #undertaleredandyellow
Image from Undertale Red & Yellow (@UndertaleRY)
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Also, if you haven't seen it in the Progress Report yet, we're looking for artists, spriters, and music composers! Apply if you're interested in helping out! Link: forms.gle/c1s1y35SwpJn4jo66 #undertale #utry #undertaleredandyellow
Image from Undertale Red & Yellow (@UndertaleRY)
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Hey! Have you heard the news? New Undertale Red & Yellow Progress Report just dropped! I hear this one's pretty juicy... Check it out below!
Image from Undertale Red & Yellow (@UndertaleRY)
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gamejolt.com/p/june-2026-pro…
June 2026 Progress Report

June 2026 Progress Report

Brr.... This cold winter breeze is something else, huh? ...What do you mean "It's Summer"? ..........What's a "Hemi Sphere?" Bah! Whatever. Half the year...

gamejolt.com
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Leaked screenshot from the development group chat. How this image was acquired is unknown.
Image from Undertale Red & Yellow (@UndertaleRY)
Undertale Red & Yellow (@UndertaleRY) profile pictureUndertale Red & Yellow@UndertaleRYApr 1
Allegedly at least 90 of these creatures are characters from the Five Nights At Freddy's series of videogames, as developer ShinixSZ has, quote, "completely lost the plot and ported every single game in the franchise into UTRY", unquote. Estimated file size is now 200GB.
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Allegedly at least 90 of these creatures are characters from the Five Nights At Freddy's series of videogames, as developer ShinixSZ has, quote, "completely lost the plot and ported every single game in the franchise into UTRY", unquote. Estimated file size is now 200GB.
Undertale Red & Yellow (@UndertaleRY) profile pictureUndertale Red & Yellow@UndertaleRYApr 1
Excluding returning, already existing creatures, sources tell me Undertale Red & Yellow will feature anywhere from one to seventeen billion eighty two million three hundred and ninety-seven new Creatures. These reports are yet to be confirmed.
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Excluding returning, already existing creatures, sources tell me Undertale Red & Yellow will feature anywhere from one to seventeen billion eighty two million three hundred and ninety-seven new Creatures. These reports are yet to be confirmed.
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New Undertale Red & Yellow progress report! I talk briefly about what 3.0 will bring, as well as what we've developed for it until now. Read below if you're interested! (It's short, I promise.)
Image from Undertale Red & Yellow (@UndertaleRY)
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gamejolt.com/p/march-2026-pr…
March 2026 Progress Report

March 2026 Progress Report

Hello! It's been a while. Wanted to give a quick update on what's been happening. Also, February 21st marked the second anniversary of the first public...

gamejolt.com
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