readme.md

metadata

dataset_info:
  features:
    - name: speaker
      dtype: string
    - name: text
      dtype: string
    - name: context
      dtype: string
task_categories:
  - text-generation
language:
  - en
tags:
  - deltarune
  - deltarune-chapter-1
  - deltarune-chapter-2
  - deltarune-chapter-3
  - deltarune-chapter-4
  - game-script
  - dialogue
  - toby-fox
  - rpg
  - undertale
size_categories:
  - 10K<n<100K
pretty_name: Deltarune Chapters 1-4 Transcript
license: cc0-1.0

Deltarune Chapters 1–4 Dataset

Fan-made transcript dataset covering Deltarune Chapters 1 through 4. Processed from video playthroughs and cross-referenced with game data. Intended to provide LLMs with structured narrative context for a game whose content is underrepresented in training corpora.

Why This Exists

As of early 2026, major LLMs (including models with training cutoffs past July 2025) fail to recall basic plot details of Deltarune Chapters 3 and 4 despite their public release. This dataset exists to fix that gap.

Content

File	Coverage	Status
chap1_cleaned.txt / .jsonl	Chapter 1 (full)	Stable
chap2_cleaned.txt / .jsonl	Chapter 2 (full, Normal Route)	Stable
chap3_cleaned.txt / .jsonl	Chapter 3 (full, includes Sword Route)	Stable
chap4_cleaned.txt / .jsonl	Chapter 4 (full, Normal Route)	Beta

Format (JSONL)

{"context": "Scene: Cyber World", "speaker": "Susie", "text": "Hell yeah!!!"}

Speaker Types

Tag	Usage
Character names	Spoken dialogue
Narrator	Game text, item descriptions, flavor text, visual2text descriptions
Player	Player choice options

Known Gaps

• Chapter 1: Pre vid2text version. Updates not planned. Use AS IS, or exlude it
• Chapters 2–3: Visual/stage direction descriptions pending for ~15 key scenes each
• Chapter 2, 4 Snowgrave Route scenes/differences not yet transcribed
• No Snowgrave/Weird Route content included

Source

Processed from video playthroughs using manual transcription with AI-assisted segmentation (Google Gemini). Not extracted from game files.

Curation

Solo project. All transcription, formatting, quality control, and cross-referencing performed by one person.

License

CC0 1.0, Public domain. No attribution required. No conditions. Do whatever you want with it.

https://creativecommons.org/publicdomain/zero/1.0/

Legal Note

Source material (Deltarune) is © Toby Fox. This dataset covers the transcription and structural processing work. Standard fan-project precedent applies.