Once you finish the first chapter, you will unlock Terra Incognita, an open-ended creative mode.
Challenges - Unlock items for Terra Incognita
Complete the challenges described below to unlock special recipes to use in Terra Incognita. Every chapter has five challenges.
Chapter 1 Challenges
Flame Blade – Complete the chapter in 20 days or less.
Stone Furniture – Build your Base up to Level 5.
Costume Set – Build a Cantlin Garden.
Featherwear Footfall Accessory (negates fall damage) – Repair the graves for the hammerhood.
[Item/Equipment] Display Stands – Defeat the three dragons.
Chapter 2 Challenges
Gourmand’s Girdle (negates hunger) – Complete the chapter in 30 days or less.
Wood Furniture – Build your Base up to Level 5.
Roofing Tiles set – Repair the ruined roof.
Water Crystal – Obtain the Crown Goowels from the King Slime.
Meteorite Bracer (allows you to run faster) – Complete all of Thalamus’s puzzles.
Chapter 3 Challenges
Talaria (grants you the double jump ability) – Complete the chapter in 30 days or less.
Special Blocks – Build your Base up to Level 5.
Forbidden Furniture – Defeat all of the boss trolls and gigantes. (There are two of each.)
Hot Water Crystal – Complete the blueprint for the spectacular spa.
Lyres of Slime Immemorial (plays 8-bit background music) – Discover the recipes for the Lyre of Slime Immemorial.
Chapter 4 Challenges
Erdrick’s Legendary Items and Gear – Complete the chapter in 30 days or less.
Superior Crafting Station –Build your Base up to Level 4.
Forbidden Gear – Find the Sword of Ruin, a cursed sword you can’t switch until it breaks.
Novelty Items – Show the Verdant Vision to a certain someone (King Slime).
Ring of Criticality (increases your critical hit rate) – Defeat the final boss without wearing the legendary armor (the Auroral Armor or the Hero’s Shield).
Connection to Dragon Quest I
Dragon Quest Builders is set in the same world as Dragon Quest, Dragon Quest II, and Dragon Quest III, Alefgard. It follows the “bad ending” of the original game, where the hero accepts the Dragonlord’s offer instead of defeating him.