How to Make a D&D Fantasy Game with AI (A Practical Guide)

If you want to make a D&D-style fantasy game with AI, the best place to start is not with systems or rules: it’s with vibe, quests, and iteration.

We recently tested this internally at Rosebud by having creatives and engineers build D&D-inspired RPGs using only AI prompts. The results were messy, surprising, and genuinely fun. Some games leaned into quests and dialogue, others into combat or exploration, but all of them were built without writing code.

👉 Watch how we tested this internally here:

What follows is a practical guide for how you can approach building your own D&D fantasy game using an AI RPG maker like Rosebud.

Step 1: Start with the Fantasy, Not the Rules

Traditional D&D starts with rulebooks. AI-powered game creation works better if you start with fantasy flavor.

Begin with a prompt that sets the world:

• “Create a D&D-inspired fantasy RPG”
• “Build a fantasy quest game with medieval villages and dungeons”
• “Make an isometric fantasy RPG with quests and NPC dialogue”

This gives the AI room to establish:

• Environment and mood
• Art style
• Initial characters

You can always tighten mechanics later.

Step 2: Let the First Result Be Imperfect

Your first generation will not be perfect, and that’s expected.

In our internal tests:

• Sometimes the AI focused too much on grass
• Sometimes a quest turned into a shooter
• Sometimes the tone drifted

That’s not failure. That’s signal.

D&D campaigns evolve as players interact with the world. Your AI-generated RPG should too.

Step 3: Iterate Like a Dungeon Master

Instead of rewriting everything, iterate in small steps:

• “Reduce combat and focus more on quests”
• “Make this NPC a quest giver instead of an enemy”
• “Add a tavern where players can talk to villagers”
• “Turn this dungeon into a stealth challenge”

Think of yourself as a dungeon master nudging the story rather than an engineer wiring systems.

Step 4: Add Quests Before Combat

A strong D&D fantasy game is driven by objectives, not enemies.

Good early quests include:

• Collect gold or items
• Defeat a specific enemy
• Explore a new area
• Help an NPC with a problem

Example prompts:

• “Add a quest to collect 50 gold”
• “Create a quest that unlocks after defeating the ancient guard”
• “Show the current quest on screen”

Once quests exist, combat has meaning.

Step 5: Use AI Dialogue for Roleplay Moments

This is where AI RPG makers shine.

You can create NPCs that:

• React differently every playthrough
• Offer branching dialogue
• Respond to player tone or choices

Example prompts:

• “Make this NPC negotiate with the player over gold”
• “Generate dialogue options when talking to the orc”
• “Change NPC responses based on player stats”

This feels very close to tabletop D&D improvisation.

Step 6: Layer in Systems Gradually

After the fantasy and quests feel right, start adding structure:

• Inventory and collectibles
• Skills or abilities
• Simple stats (charm, strength, magic)
• Level progression

You don’t need to design everything upfront. Many of our best internal games discovered their systems after playtesting.

Step 7: Embrace Unexpected Results

One of the most fun parts of our internal test was watching games drift into unexpected genres:

• A quest game became a platformer
• A fantasy RPG leaned into isometric exploration
• A dialogue-heavy game turned into a stat-based negotiation sim

Instead of fighting this, lean into what feels fun. D&D is flexible by nature.

Step 8: Publish, Share, and Remix

Once your fantasy game feels playable:

• Publish it
• Share the link
• Remix it later to expand the world

Many internal builds started as small experiments and later grew into multi-level RPGs.

Why Rosebud Works Well for D&D-Style Games

Rosebud supports D&D-style game creation because it allows:

• Fast worldbuilding with prompts
• AI-driven NPC dialogue
• Quest and progression systems
• Iterative design without breaking the game
• Instant publishing and sharing

You’re not coding rules. Rather, you’re shaping a world.

Make Your Own D&D Fantasy Game with AI

If you’ve ever wanted to create a fantasy RPG, run a digital D&D-like world, or experiment with AI-driven storytelling, this approach is a great place to start.

👉 Try it yourself on Rosebud AI
Make a D&D-inspired fantasy game with AI.