Seam may know about the future and the only one ending

[Artemón]

When you talk about the Prisoner he'll talk this "After all, it's not as if whatever happens, will matter in the end." It seems he already know about the future this is explanation why he's in apathy and don't come in the end of Ch.1

[CalokAndQkourQcuarante]

He also seems to know he's in a text-based game. He specified his name "Seam" is pronounced "Shawm" and joked "Welcome to my little Seap." In-universe, hearing this line be spoken out loud would make zero sense, since why would he need to specify how to pronounce a name he just said?

Although I disagree that there's only one ending, that is likely what Seam and certain others think.

[WheatlyQuirrel]

But Toby said their would only be one ending tho (responding to Calok)

[CalokAndQkourQcuarante]

Originally posted by WheatlyQuirrel:

But Toby said their would only be one ending tho (responding to Calok)

That's what Toby said, yes, in his original 2018 post on the DR site it was very firm, but in the current 2021 Steam page it's become a vague "... only 1 ending...?" https://store.steampowered.com/app/1671210/DELTARUNE/

It's possible he changed his mind, or was never being honest about it to begin with (in a jokey way), but I'd say giving a whole second route with no consequences for the ending just seems kinda like bad writing, and more like just fanservice for fans of Genocide than something important for the story. Toby does fanservice, but I don't think he'd go so out of his way for something without a point, especially with his new vague phrasing.

[TheGabester]

I think it's probably going to be one ending, meaning that the finale itself will be the same when it comes to major plot beats, but the connotation of that ending will change depending what path you take. I imagine it's moreso that the changes from weird route to normal route mainly opens up to the player plot points otherwise left unseen in standard gameplay which serves to only reframe the ending, not really change it. Granted, I have no idea what's going on with Berdly in the weird route, but given everything we know, he's probably not important to both endings unless the Fun Gang have an industrial size hairdryer out back. Basically, I think it's mostly unlikely we'll get anything like Undertale's vastly different narratives between the pacifist/neutral routes and the genocide route again as Toby seems to want to shake things up and subvert expectations just like what he did with Undertale 9 years ago. I'm honestly so excited to see how he pulls of his feverdream ending, too [which since the game was reverse engineered from ending to everything else, I'm even more certain he isn't kidding with us that it's one ending].

[THERAPY_CAT]

the idea I've had for my own take that I'd honestly say has a good chance of happening is that TECHNICALLY there are multiple endings but they have a set chronological order and you need to combine certain parts from each to achieve "the one true ending"

it's still TECHNICALLY one ending because none of the other endings are TECHNICALLY endings, only precursors and stops to get to the real one

[iliketoeatdoges]

Hear me out right: He could just say nothing matters because he's a nihilst.
Or just wants to confuse you, since he's seemingly aware he's in a game.