gaster is essentially the god of a cult that consists of the g. followers where he wishes to take a human soul tied with "the fallen one" (chara) so he may interact with them and erase the world so he may build a new one "devoid of any suffering - a perfect world" (almost word for word what he says in the phase 3 intro for og ulb: "A world where no one has to die. A perfect world...without you.") and your soul is connected with chara so he brainwashes sans and gets him to join the cult so he may take the human's soul
Next up
delta rune
books
Guys what if...
Horror!Dust!Sans... where instead of he remember genocides..
he's just... Canibal..
personally i think that makes more sense for a dust horrortale
After 7 long years, the wait is finally over. Chapters 1-4 of DELTARUNE are out now!
Celebrate the parallel story to Undertale by completing these quests.
underfell concepts
They say my hunger's a problem
don't forget to put on your happy face !
Hearts and Stars 
battle system part of the engine is almost done let's fucking gooo
this is just a test btw this isn't an actual fight
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