Walkthrough12 min
Deltarune Chapter 1 Walkthrough: The Beginning
A complete step-by-step walkthrough of Deltarune Chapter 1, from the school classroom to the Card Castle and the fight against the King of Spades.
#chapter 1#walkthrough#card castle
Complete guides for Chapters 1–5
The complete DELTARUNE
field journal
Walkthroughs, secret-boss unlocks, route guides, character deep-dives, and the latest chapter news — written for players, not algorithms.
05
Chapters covered
05
Secret bosses
100%
Completion focus
Chapter Walkthroughs
Step-by-step guides for Chapters 1–5 with boss strategies and hidden secrets.
Secret Bosses
Unlock conditions and combat tips for every hidden boss in the game.
SnowGrave Route
The complete alternate-route guide for Chapter 2, choice by choice.
Character Guides
Deep dives into the cast, from Kris and Susie to Spamton and Ralsei.
Latest Guides
Step-by-step walkthroughs and boss guides for every chapter.
Walkthrough15 min
Deltarune Chapter 2 Walkthrough: A Cyber World
Full walkthrough for Deltarune Chapter 2 covering the Cyber World, Queen's Mansion, and how to unlock the Spamton NEO secret boss.
#chapter 2#walkthrough#cyber world
Walkthrough18 min
Deltarune Chapter 3 Walkthrough: The TV World
Complete Chapter 3 walkthrough with boss strategies, puzzle solutions, and how to obtain the Shadow Mantle for the Roaring Knight secret boss.
#chapter 3#walkthrough#tv world
Walkthrough18 min
Deltarune Chapter 4 Walkthrough: The Sanctuaries
Chapter 4 complete guide with walkthrough, boss fights, music-sheet puzzle, and the Hammer of Justice secret boss unlock steps.
#chapter 4#walkthrough#sanctuaries
Walkthrough20 min
Deltarune Chapter 5 Walkthrough: Festival Day
The latest Chapter 5 walkthrough for Festival Day. Covering the Flower Kingdom, main story bosses, and how to unlock Mad Mew Mew (Pink).
#chapter 5#walkthrough#festival day
Boss Guide10 min
How to Beat Jevil in Deltarune Chapter 1
Step-by-step guide to unlock and defeat Jevil, the Chapter 1 secret boss. Includes pacifist and violent strategies, rewards, and attack patterns.
#jevil#secret boss#chapter 1
Secret Bosses
Unlock and defeat every hidden boss across Chapters 1–5.
Ch 1Secret Boss
Jevil
Former Court Jester of Card Kingdom
Difficulty
Jevil is locked in the basement of Card Castle. After meeting a "strange someone," he believes the world is a game and can be defeated either by depleting his HP or by raising his Tiredness to 9 and casting Pacify.
LocationCard Castle basement (?????? floor)
HP3,500
RewardDevilsknife (violent) or Jevilstail (pacifist) + Shadow Crystal
Ch 2Secret Boss
Spamton NEO
The Glitchy Salesman from the Trash Zone
Difficulty
Spamton is a puppet salesman desperate to become a "BIG SHOT." Insert the LoadedDisk into the basement machine in Queen's Mansion to trigger the fight.
LocationQueen's Mansion basement
HPVariable
RewardPuppet Scarf (violent) or Dealmaker (pacifist) + Shadow Crystal
Ch 3Secret Boss
Roaring Knight
The Knight of the Dark Fountains
Difficulty
The overarching antagonist appears at the end of Chapter 3. The Shadow Mantle, earned by getting S Rank on both TV Time boards and defeating a shadow mini-boss, makes this fight survivable.
LocationEnd of Chapter 3 (TV World)
HPUnknown
RewardShadow Crystal
Ch 4Secret Boss
Hammer of Justice (Gerson Boom)
The Undertale Blacksmith Returned
Difficulty
Collect three music pieces across the Dark Sanctuaries, play them on the golden piano, and enter the fireplace path to face Gerson Boom as the Hammer of Justice.
LocationSecret path behind the Study fireplace
HPUnknown
RewardPowerful Susie item + Shadow Crystal
Characters
Meet the heroes, villains, and everyone in between.
LightnerChapter 1
Kris
Protagonist
The human child you control. Kris lives in Hometown with their adoptive family, the Dreemurrs, and is the leader of the Delta Warriors in the Dark World.
LightnerChapter 1
Susie
Party Member
A rebellious monster classmate who falls into the Dark World with Kris. She starts as a bully but becomes a loyal friend and heavy-hitting party member.
DarknerChapter 1
Ralsei
Party Member / Prince of Darkness
A fluffy prince who waits in Castle Town for the Heroes of Light. Ralsei acts as the party healer and is deeply connected to the Prophecy.
DarknerChapter 1
Lancer
Prince of Spades
The clumsy but lovable son of the King of Spades. Lancer switches from antagonist to ally over the course of Chapter 1.
Latest News
Deltarune Chapter 5: Festival Day Is Out Now
Toby Fox released Deltarune Chapter 5 worldwide on June 24, 2026. The chapter takes place in the Flower Kingdom and includes a new secret boss, Mad Mew Mew (Pink).
Chapter 5 Release Date Announced in Nintendo Direct
During the June 2026 Nintendo Direct, Toby Fox revealed that Deltarune Chapter 5 would launch on June 24, 2026, as a free update for paid owners.
Deltarune Chapters 3 & 4 Released as Paid Title
Chapters 3 and 4 launched simultaneously on PC, Mac, Nintendo Switch, Switch 2, PlayStation 4, and PlayStation 5, marking the first paid release of Deltarune.
Ready to seal the Dark Fountains?
Start with our beginner-friendly guide or jump straight into the Chapter 5 walkthrough.