Russian developer Edik Zykov, also known as Eddy, is developing a fanmade version of Undertale. The game will feature 2D sprites in an explorable 3D world. Undertale 3D will not be a full remake of the original game, but “it’s gonna be a short spin-off story,” as Zykov’s website explains.
Undertale 3D will have Frisk exploring the new world in an attempt to stop an Underground monster from finding its way into the real world where the player resides. No release date has been conformed, but Zykov’s website should have the details a they come.