堀井雄二のドラゴンクエストのつくりかた 【#InsideSQEX】

Summary

The interview explores the ideas and practical methods behind Yuji Horii’s approach to making Dragon Quest, drawing on the book How to Make Dragon Quest. Horii and co-author Gozo Shiozaki discuss the series’ development, from story and dialogue to game balance and the player experiences those choices create.

The Book and How It Was Made

• Horii had turned down requests to write a book for years, but the series’ 40th anniversary gave him a reason to revisit the idea.
• Shiozaki had long wanted to read a book explaining Horii’s creative thinking. They developed the book through repeated brainstorming sessions, interviews, drafts, and revisions over roughly a year and a half.
• The authors wanted to cover not only the story and creative philosophy, but also the less visible work of game design, including parameters and balancing.

Start With the Problem, Goal, or Antagonist

• Horii describes beginning a story from the Demon Lord’s perspective as one useful way to design an RPG: decide who the antagonist is, what they want, and what problem the hero must address.
• A clearly established goal helps shape the protagonist’s actions and gives the story direction. Horii connects this approach to the idea that a story’s central conflict and characters matter more than simply inventing a sequence of events.
• Dragon Quest I makes its destination—the Dragonlord’s castle—visible early. Seeing a goal that cannot yet be reached can motivate players to explore, grow stronger, and work out how to get there.
• The same principle applies to inaccessible treasure or places: showing players something they want can give them a reason to keep exploring.

Warmth, Dialogue, and Character

• Horii wanted to bring warmth to computer RPGs, which could otherwise feel cold or mechanical.
• Dialogue was central to that goal. Rather than relying heavily on narration, the games convey setting and story through short exchanges, helping players feel as though they are reading or inhabiting a story.
• Horii’s experience writing manga informed his focus on concise, readable lines that communicate emotion and personality. He often writes by imagining himself in a character’s position.
• Character dialogue should feel specific to the person speaking. The interview discusses characters whose strong or unusual personalities make their lines memorable, rather than having everyone speak in the same way.

How the Slime Became Appealing

• Horii’s initial Slime concept was a rough sketch, deliberately left open-ended so Akira Toriyama could interpret it freely.
• Toriyama’s version—with eyes and a mouth—made the monster cute and approachable, unlike the more unpleasant, gelatinous slimes common in earlier RPGs.
• The discussion presents this as an example of how leaving room for an artist’s interpretation can produce a distinctive design.

Practical Design Principles

• Prioritize the player’s experience. Horii says a game should focus on what will make players enjoy themselves, rather than on showing off how impressive the creator’s ideas are.
• Favor comfort when realism gets in the way. A movement detail that made travel through mountains feel slower was removed because it made the experience tedious without adding enough value.
• Make difficulty inviting. Horii wants many players to be able to finish Dragon Quest. The game should allow progress through persistence, rather than depend on action-game reflexes or leave players permanently stuck.
• Use parameters to create impressions, not just mathematical consistency. The team adjusted values according to how events felt in play, not solely according to what a probability “should” mean on paper.
• Account for how players remember outcomes. Players tend to remember frustrating failures more vividly than routine successes. The interview uses Zao—a revival spell—as an example: its stated success rate was set above 50% so that it would feel effective about half the time.
• Shape combat so bad luck does not overwhelm the player. Group-control rules can prevent multiple enemies from repeatedly selecting the same especially punishing attack or target, reducing the risk of an unfair-feeling wipeout.
• Express monster personalities through behavior. Parameters can determine whether a monster acts predictably, uses a certain attack aggressively, misses often, or occasionally lands a heavy hit. Those patterns help make enemies feel like distinct characters, not just collections of strength and HP values.
• Treat randomness carefully. Purely random behavior can produce extreme streaks. The discussion describes using controlled distributions or other adjustments to make results feel closer to the intended experience.

Player Communities and the Real World

• The interview recalls the unexpected popularity of player-shared maps in Dragon Quest IX. The system was intended to let players create and distribute maps, but one especially useful map became widely sought after.
• Players travelled to exchange maps in person, turning an in-game feature into a social, real-world event. Horii says this felt like the virtual world beginning to extend into everyday life.

Why the Games Can Matter to Players

• A reader’s letter describes gradually progressing through the game as a young child and gaining confidence along the way. The guests connect this to a key design intention: players should be able to make progress little by little and eventually succeed.
• Horii sees RPGs as a way to experience lives and perspectives beyond one’s own. He also hopes the idea of trying, failing, learning, and trying again can encourage people outside games.
• The interview presents Dragon Quest’s accessibility, warmth, and memorable player experiences as central to why the series has remained meaningful to different generations.

Speakers and Sources Featured

• Yuji Horii — Game designer and creator discussing the series’ design and writing.
• Gozo Shiozaki — Co-author of the book and interview guest.
• Atsuko Uchida — Host and interviewer.
• Reader-letter contributors, whose questions or stories are read aloud. Names are given as rendered in the subtitles: Shibire Jellyfish, Hatena, Imo Rock, T-san, Pon-san, Megante Yamamoto, Battle Master Uncle, Kanda Seven, Mahyado, and a contributor whose name is rendered as “Life begins with Mr. Palpunte.”