Syweb2's avatar
This is super far-fetched, and Toby himself basically shot that down in the link Zarla put in the description. Besides, Gaster had little-to-nothing to do with the war that got monsters sent to the underground in the first place.
muffinbomb97's avatar
i disagree. He said, specifically, it takes place in another world. this is a different timeline. it is just the precursor to undertale's world.
Syweb2's avatar
...Pardon? He said it had nothing to do with Undertale.
There is nothing indicating it is a precursor or prequel of any kind.

Plus, in all of the in-game events involving Gaster, it specifies that, despite him being gone, nothing different happened. His disappearance was insignificant.
muffinbomb97's avatar
he didnt say it had nothing to do with undertale! he said it is in a different world, specifically. this leaves the door open for my interpretation. different worlds does not mean unconnected