A hidden corner of the official Deltarune website has quietly turned into one of the strangest community puzzles in gaming. For more than a year, Toby Fox has used cryptic questions, blank web forms, and follow-up emails to filter a massive fanbase down to a tiny pool of eligible solvers. By the time Chapter 5 arrived, exactly 1,229 people were left holding the final clue.
Quick answer: The Deltarune ARG is a years-long alternate reality game run through deltarune.com, where players answered cryptic questions through a hidden form. Each round eliminated wrong answers, leaving 1,229 eligible solvers. The latest correct answer to “Where will it take place?” was the lake east of town, not the festival. The forms are now closed, so new participants can no longer join.
What the Deltarune ARG is
An alternate reality game blends real websites, emails, and hidden pages with a video game’s fiction. Deltarune’s version works like a slow guessing game. The developer posts a question through the game’s official site, fans submit an email address and an answer, and a reply email tells them whether they are on the right track. Get a wrong answer, and you are quietly dropped from the next round.
The groundwork dates back to the Spamton’s Sweepstakes event in 2022, which raised money for the Child’s Play charity and led players to discover the first hidden webpages. It stayed mostly dormant until 2025, when the puzzle picked up real momentum. The answers tie directly into spoiler-heavy events from the game, especially the disturbing “Weird Route” and the character Noelle, so you need deep knowledge of the story to respond correctly.
One important thing to keep in mind: none of this is required to play or enjoy Deltarune. The main story stands on its own. The ARG is a side layer for fans who want to obsess over lore between chapters.
The timeline of questions and answers
The puzzle has unfolded in distinct rounds, each opening for a short window before closing again. Every round narrowed the group of people who could continue.
| When | What happened |
|---|---|
| 2022 | Spamton’s Sweepstakes charity event leads fans to the first hidden webpages. |
| May 2025 | A hidden page at deltarune.com/chapter4/thankyou/ appears with two blanks and the question “How long did it take her to smile?” Players identify “her” as Noelle. Correct entries get a blank confirmation email. |
| Late 2025 | The page reopens with the same question. Responders this time receive emails repeating their answer with cryptic hints such as “So, ‘she never stopped smiling’” and the instruction “Move forward with this answer.” |
| June 2026 | After the Chapter 5 announcement, the page returns with three blanks and a new question, “Where will it take place?” It stays open only 24 hours. |
| June 23, 2026 | Twenty-four hours before launch, eligible responders get answers back. “The festival” is marked wrong; “The Lake” or “The Shore” is correct, paired with an image of Kris by the lake. |
When the latest page went live, the community scrambled to log in and document it before the short window closed.
Why only 1,229 people can solve it
The number comes straight from text the page displayed after the most recent round closed:
- Available entrants: 1,571
- Total received: 1,229
- Next correspondence: When less than 24 hours are left.
Fans read this as a two-step filter. The 1,571 figure represents everyone who was told to “Move forward with this answer” in the earlier round. Of those, 1,229 actually came back and submitted a response during the 24-hour window for the newest question. Only that final group of 1,229 is eligible to receive meaningful replies going forward. Everyone else is, in effect, locked out.
The “Next correspondence” line pointed to the launch itself. The final emails went out roughly 24 hours before Chapter 5 released, which Toby Fox set for 11 a.m. ET on June 24, 2026.
The lake answer that broke fan theories
For most of the past year, the community assumed the big moment of Chapter 5 would happen at the festival event the entire main cast is planning to attend. So most eligible responders answered “Where will it take place?” with “The festival.” Those answers came back marked as off track.
The correct response turned out to be the lake to the east of town, with “The Lake” and “The Shore” both accepted and rewarded with a screenshot of Kris standing near the water. The lake has been a quiet subject of speculation for a while, mostly because strange music can be heard coming from across it. The reveal sent the ARG community into a frenzy hours before launch.
That single answer upended a year of theories tied to Noelle, her missing older sister Dess, the “Roaring Knight,” and the prophecy that drives the main plot. With the festival ruled out as the climax, fans started reworking everything they thought they knew about where Chapter 5 was heading.
Can you still join the Deltarune ARG?
No. Each round opened for a very short time, often just 24 hours, and the system only sends meaningful replies to people who cleared the previous step. Because the pool has already been narrowed to 1,229 eligible solvers, anyone arriving now cannot enter the chain. Late attempts, and any future ones, fall outside the filtered group.
If you want to follow along anyway, the most active discussion lives in community spaces where the 1,229 responders compare emails and screenshots. With at least two more chapters still to come after Chapter 5, the puzzle may not be finished, but the door to becoming an eligible participant has closed for now.
