Devlog! We've started genuine development! The first demo will be for the Snowdin Area! You won't see the Ruins very much in this game, and Snowdin is an important area in TC!UTO's story! This demo won't be released for a while, though. Until then!

Heya!

Have some teasers for Undertale Rainbow while you wait for the Hotland update! 1: Remade border! 2: Some dialog seen in the new update! Also, the Hotland update will have Hotland, New Home, The Castle, and Omega Flowey ok byeeeee!

Dev Update - February 2026

Play Undertale Rainbow, an expansion to Undertale Red and Yellow!

Hello there, I'm coming back...or not?

Alen is a wacky, yet simultaneously very relaxed engineer-in-training. She builds tons of contraptions, and brings everything in her bag! She's also helping finish the CORE as an apprentice of ███ ██████. She hasn't seen him in a while, though...

Devlog! Cutscene test! Nothing in this video is final, and are subject to change. (Audio may be glitched)

getting a better grip at drawing her

Hey guys

Here you go

Okay bye