I was thinking about it for a long time and it occurred to me that first I will start with the typical UNDERTALE and from there add things that will be in the fangame (this is just a MOD). I won't add everything I have in mind for the fangame, I'll just add some things.
8 Directions!!! (and pose T) 
Earthbound, be like:
(UNDERTALE YELLOW characters will only be mentioned or referenced 
...)
Toby Fox (creator of Undertale) will be involved as a voice actor and composer in the animated pilot for 'Homestuck'.
It will be produced by Spindlehorse, the indie company behind Hazbin Hotel and Helluva Boss.
VivziePop will also be producing.
I have many doubts 
UNDERTALE DELTARUNE NEWSLETTER FALL 2025
It's been 10 years since UNDERTALE released... - Spanish / Español
This week's Fan Art Friday celebrates Undertale! Accept the quest in your quest log to get started.
TR!Frisk - My frisk of the comic TWIN RUNES
Happy Joltidays! A new quest has entered your quest log. Accept the quest and follow @souptaels 
to open today's slot on the calendar.
Pluey 
There are 3 months left for the chapters to come out
(I would say it would come out in March.)
Roaring Knight: Crossover (Tentative Title)
[WIP 01]
It's Pluey and Android 
9 comments