Toby Fox, creator of the acclaimed Undertale, he returned to be heard. On his Twitter profile, yesterday, he started a countdown of 24 hours ended today.
RETURN HERE IN  HOURS.
- UNDERTALE / DELTARUNE (@UnderTale) October 30, 2018
The announcement was then revealed: by connecting to the following link you can freely download Deltarune, a new title of which, at the moment, this first chapter is available.
It is not yet known whether it is a prequel, a sequel or a spin-off of Undertale even if, bringing it to terms, all clues lead to one direction. Run to download it!
- UNDERTALE / DELTARUNE (@UnderTale) October 31, 2018