DISCOVER YOUR NEXT FAVORITE SERVER

The largest server for Undertale, the game where you don't have to destroy anyone. Feat. sans undertale. Also feat. DELTARUNE!

Server for the Undertale and Deltarune Wiki. Talk about wiki editing, Undertale, Deltarune, and all related topics!

A community for the character Asriel from Undertale. Meet other Asriel fans, make friends, post art, obsess about him, and more! A server maintained passionately over the course of 6 years, and still going strong!

Welcome to Undertale Fractured Time! A RPG ROBLOX spinoff of the famous game Undertale, with a unique storyline.

A server dedicated to both Undertale, and Deltarune, including content related to them.

Undertale Yellow Fanserver. Coming back slowly to build more of a community besides Undertale, owned by Goobie, previous by Noxxy.

A sans vs sans game based in roblox, join the server if you want to discuss with others about the game or other things in general or if you have any questions feel free to ask!

Discord server for updates for Undertale MULTIPLAYER.

The unofficial Discord for Deltarune! Deltarune is an indie game by the creator of Undertale, Toby Fox.

SoulShatters is an Undertale inspired Roblox fighting game. This is the community server, read the rules!

Somos un equipo de traducción al español de Deltarune, Undertale y otros proyectos relacionados con Toby Fox. Este servidor es para la comunidad hispanohablante de UT/DR. Incluso si no estás aquí por la traducción, ¡podrás compartir tus intereses con otros usuarios que hablen tu mismo idioma!

The biggest server for recreating Toby Fox music (including UNDERTALE and DELTARUNE) with all work open to the public! Active community and useful content for all musicians to enjoy. (This is a fan project that is not affiliated with Toby Fox or his team)