You can make an RPG with AI by describing a small world, one quest, how combat or choices work, and how the player gets stronger, then building and play-testing it one system at a time. The trick is scope. A ten-minute RPG with one town, one dungeon, and one boss is finishable in a session. A sprawling open world is not, with or without AI.
This guide covers how to scope an AI-made RPG, copyable prompts for different RPG styles, the order to build systems in, and how to do it on Fifth Door.
What counts as an RPG for a first build?
An RPG needs three things: a character the player grows, choices or combat that use those stats, and a goal that pulls the player forward. Everything else is optional for version one.
Good first scopes:
- Micro dungeon crawler: five rooms, three enemy types, one boss, one upgrade per room.
- Turn-based battle RPG: a series of fights with level-ups between them, no map.
- Story RPG: a short adventure where choices change stats and the ending.
- Idle or auto-battler RPG: the hero fights on their own; the player chooses upgrades.
Save for later: big maps, inventories with dozens of items, crafting, party management, and long campaigns.
RPG prompts you can copy
Paste one into create, or start from the Adventure template and specialize. Results vary.
- Micro dungeon: "Top-down dungeon crawler with five connected rooms. Arrow keys move, space attacks. Slimes, bats, and skeletons. Each cleared room offers a choice of one upgrade: more damage, more health, or faster attacks. A boss in room five. Health bar, simple pixel art, restart on death."
- Turn-based battles: "Turn-based RPG with a hero who fights five battles in a row. Each turn choose Attack, Defend, or Heal. Enemies get stronger each battle. After each win, the hero levels up and picks one stat to raise. Clear numbers on screen."
- Story RPG: "Short fantasy story RPG. The player is a courier crossing a forest. Three encounters, each with three choices that use Strength, Wits, or Charm. Stats start low and grow based on choices. Two endings depending on stats at the end."
- Auto-battler: "Idle RPG where a knight walks right and fights enemies automatically. Gold drops from enemies. Spend gold on three upgrades. A boss every ten enemies. Short sessions."
For general prompt structure, see best prompts for an AI game generator.
What order should you build RPG systems in?
Build the core loop first, then add one system per follow-up, and play after each:
- Movement or turn flow. Can the player act clearly?
- One fight or one choice. Does it feel like it matters?
- Progression. A level-up or upgrade after each win.
- A goal. A boss, an exit, or an ending.
- Feel. Hit feedback, sound, and art.
- More content. Only now add rooms, enemies, or encounters.
Useful follow-ups:
- "Show damage numbers when hits land."
- "Make the first fight easy enough that nobody loses it."
- "Explain each upgrade in one short line."
- "Add a save point before the boss."
How do you give NPCs real conversations?
Scripted dialogue is the reliable default. If you want characters that answer what the player types, Fifth Door's Platform SDK supports in-game AI generation, so a game can generate a character's reply while you play. Keep it bounded: give each character a short personality and a goal, and keep the game's rules (stats, rewards, quest flags) in the game code so the conversation cannot break them.
How do you add saves to an RPG?
Longer RPGs need saves. On Fifth Door, published games cannot use localStorage or cookies, because they run in a sandboxed frame. The Platform SDK provides a player record for progress such as level, stats, unlocks, and the current room, and it persists across sessions. If you build in your own editor, ask your agent to read the SDK docs before it writes save logic.
How do you make RPG art and audio?
If you build with Claude Code, Cursor, or Codex and the Fifth Door MCP server, your agent can generate:
- A hero drawn from every facing, then animations such as walk, attack, hurt, and die
- Enemies, items, and tiles that share one style reference
- Background music, sound effects, and voiced dialogue scenes between characters
Generation runs on a daily budget per account. Steps for the editor path are in how to make a game with Claude Code.
When should you use an engine instead?
If you want a 30-hour campaign, a level editor, or a store release, a full engine or a dedicated RPG tool is the better fit. See AI game maker vs game engine. If you are comparing hosted makers for RPGs, see Rosebud AI alternatives for fair criteria.
Common mistakes
- Starting with a world map instead of one fight
- Stats that never change what happens
- Ten item types before one is fun
- No ending, so the game just stops
- Long text walls on a phone screen
FAQ
Can I make an RPG with AI without coding?
Yes, if you keep it small. Describe the hero, one quest, combat or choices, and progression. Then build one system at a time and play after each change.
What is the easiest RPG to make with AI?
A turn-based battle RPG or a short choice-based story RPG. Neither needs a map or real-time controls.
Can an AI RPG save my progress?
On Fifth Door, games save through the Platform SDK's player record, which persists across sessions. Browser storage is not available to published games.
Can NPCs talk back with AI?
Yes, through in-game AI generation in the Fifth Door SDK. Keep stats and rewards in the game's own logic.
Can my RPG be multiplayer?
Start solo. Co-op and turn-based multiplayer are possible later; see how to make a multiplayer game with AI.
Start your RPG
Pick one prompt above, open Fifth Door create, get one fight feeling good, then add progression and a boss. Share it from the game page and see other adventures on Discover.