How to Prompt AI to Make a Game

If you are trying to make games with AI, the prompt is the design brief. A strong game prompt gives the AI enough structure to choose the right genre, controls, goals, and visual direction without overcomplicating the first version.

This guide is written for Vibecade, but the core advice also applies more broadly to AI game development.

What makes a good AI game prompt

The best prompts usually do three things:

• define the core loop
• define how the player sees and controls the game
• define the scope of the first playable version

That is more useful than writing a long paragraph full of vague adjectives.

Best prompt format for AI game development

Use this structure when you want a clean first build:

Build a game with:
- Genre:
- Camera or point of view:
- Core loop:
- Controls:
- Goal:
- Failure state:
- Visual style:
- Audio mood:
- Must-have features:
- Keep the first version simple by:

What to include when you want AI to make a game well

If you only include a few details, make them these:

• the genre
• the camera or point of view
• the main mechanic
• the controls
• the win or lose condition

Those details shape the outcome more than broad phrases like “make it fun” or “make it amazing.”

Good AI game prompt examples

Example 1: Action game

Build a side-scrolling action game where a robot courier wall-jumps between collapsing rooftops. Keyboard controls only. Add a battery meter, short runs, moving hazards, and glowing sunset city art. Keep the first version to one level and one enemy type.

Example 2: Puzzle game

Build a clean puzzle game where players rotate mirrors to guide a laser into targets. Make it calm, readable, and satisfying, with soft colors, subtle sound effects, and 10 handcrafted levels. Start with a level select screen and a simple hint button.

Example 3: 3D prototype

Build a low-poly first-person arena game where I can dash, double-jump, and blast floating drones. Keep the art minimal, the HUD clear, and the first version focused on movement feel before adding more content.

Prompt patterns that work especially well in Vibecade

Start small, then expand

Better:

Build the first playable version with one level, one enemy type, and one upgrade path.

Worse:

Build a huge open-world RPG with crafting, housing, companions, factions, and online co-op.

Say what to preserve

When a version already has something you like, protect it:

Keep the current movement and camera feel. Only redesign the HUD and pause menu.

Give constraints

Constraints help Vibecade make better decisions:

• “Use keyboard only.”
• “No inventory system yet.”
• “One-button controls.”
• “Make it work well on laptop screens.”

Common mistakes when prompting AI to make a game

Avoid prompts that:

• ask for too many systems in the first turn
• describe the story but not the gameplay
• mix several visual directions together
• hide the core mechanic inside a long wall of text

How to improve a weak game prompt

Weak:

Make an amazing game about a wizard.

Better:

Build a top-down action game about a wizard defending a circular arena. Mouse aims spells, keyboard moves, enemy waves spawn every 20 seconds, and the player chooses one upgrade after each wave. Use bright spell effects and dark ruins for contrast. Keep the first version to one arena and three spell types.

After the first build

Once the game exists, stop writing full spec documents. Switch to short, focused follow-ups like:

• “Add a dodge roll on Space.”
• “Reduce enemy spawn rate in the first minute.”
• “Change the UI from sci-fi to fantasy parchment.”

That is usually the fastest path to a polished game.

For follow-up strategy, see Iterate on a Game.