How to Make a Game With AI (Step by Step, 2026)

Most guides on making a game with AI stop at the promise. They tell you AI can build a game, show a slick demo, and leave you staring at a blank project wondering what to actually type. This one is the opposite. It walks through the real process, the exact kind of prompts that work, and the parts where AI hands the wheel back to you.

If you want the broader landscape of tools and workflows first, the pillar guide compares twenty of them. This post assumes you have decided to build something and want to know how, step by step.

{/* IMAGE: Hero showing a chat prompt on the left ("make the player jump when I press space") and a running 2D platformer on the right, with an arrow between them. 1200x630, clean editor screenshot style. */}

What "making a game with AI" actually means in 2026

There are three different things people mean by this phrase, and picking the wrong one wastes a weekend.

AI inside a hosted browser tool. You type a prompt, a small web game appears in your browser. Fast and fun for a prototype. The catch is scope: these tools cap out at small HTML5 games, and most cannot export to Steam or desktop.

AI assistants inside an engine you already know. Tools like GitHub Copilot autocomplete code while you work in Unity or Unreal. Powerful, but they assume you already know the engine and can read the code. Not a starting point if you have never opened an editor.

AI native engines. The AI is wired directly into the editor. You describe what you want, and it writes the scripts, builds the scene, places the nodes, and runs the game, then you playtest and ask for the next change. This is the workflow that takes a non-coder from idea to a real, shippable game. Summer Engine is built around it and is compatible with Godot 4, so the project you make is a real engine project you own.

The rest of this guide uses the AI native workflow, because it is the only one that scales from a prototype to a finished game without rebuilding everything in a second tool.

Step 1: Shrink your idea before you touch any tool

The single biggest reason AI game projects stall is scope. "An open world RPG with crafting and online multiplayer" is not a first project, it is a five year project, and no AI will save you from that math.

Before you open anything, write one sentence that describes the smallest version of your idea that would still be fun to press a button in. Examples:

• "A square that jumps over pipes and dies if it hits one."
• "A top down character that walks around a room and picks up coins."
• "A card that flips when I click it and shows a random number."

Each of those is a real core loop. You can build it in an afternoon, feel it work, and then grow it. The grand version lives in your head as the destination, but the sentence above is what you build first.

Step 2: Start from the closest template, not a blank project

A blank project means the AI has to invent your player controller, camera, input setup, and physics from scratch, and every one of those is a place for an early bug. Starting from a template that already moves and runs removes that risk entirely.

Open the templates and pick the one nearest your sentence. A 2D platformer template already has a jumping character and ground. A top down template already has movement and a camera. You are not starting from zero, you are renaming and reshaping something that already runs. This is the highest leverage decision in the whole process and the one beginners skip most often.

If your idea genuinely does not match any template, pick the closest movement style anyway. The movement and camera are the hard part to get right, and the AI can re theme everything else.

Step 3: Build one mechanic at a time, and play after each

This is the core skill. Not the prompts themselves, the rhythm.

The instinct is to type "make a complete platformer with enemies, coins, a health bar, and three levels." When you do that, the AI makes a dozen quiet design decisions, something breaks, and you have no idea which decision caused it. You are now debugging a black box.

Instead, work in a loop:

1. Ask for one small, testable change.
2. Run the game.
3. Confirm that exact thing works.
4. Ask for the next change.

Here is what that looks like for the jumping square:

"Make the player jump when I press space."

Run it. It jumps. Good.

"Make the jump feel heavier. Fall faster than the player rises."

Run it. Better feel. Good.

"Add pipes that move from the right side of the screen to the left at a steady speed."

Run it. Pipes move. Good.

"End the game and show a 'Game Over' label when the player touches a pipe."

Run it. You now have a tiny, complete game. Every step was something you could see and verify, so when something does break, you know precisely which prompt to roll back. This loop is the entire job, repeated until the game is done.

{/* IMAGE: A vertical strip of four small game states matching the four prompts above, showing the game growing one step at a time. 800x1200, illustration. */}

Step 4: Write prompts the AI can act on

You do not need to write code, but you do need to describe behavior precisely. The AI is excellent at building what you describe and poor at guessing what you meant.

Vague prompts that lead to bad guesses:

• "Make it more fun." The AI has no idea what fun means to you.
• "Add enemies." How many, what do they do, how do they move, what happens on contact?
• "Fix the jump." Fix it how? Too floaty, too short, not triggering?

The same intent, written so the AI can act:

• "Add three enemies that walk left and right along the ground and reverse direction when they hit a wall."
• "The jump is too floaty. Make the player reach the top of the jump faster and fall down quicker."
• "When the player touches an enemy, restart the level."

Describe the behavior you want to see on screen, including what triggers it and what should happen. Numbers help: "moves at a steady slow speed" is weaker than "moves three times slower than the player." You are the designer giving direction, and the AI is the team that executes it.

Step 5: Add art and sound, then playtest like a stranger

Once the loop is fun to press, layer in the feel. AI native engines can generate sprites, 3D models, sound effects, and music from prompts, so a placeholder square can become a real character without you opening an art tool. Ask for the art the same way you ask for mechanics, one piece at a time, and swap it in.

Then do the part no AI does for you: play your own game as if you had never seen it. Hand it to a friend and watch without explaining anything. The moments where they hesitate, miss the goal, or stop having fun are your real to do list. AI builds what you ask, but only a human can tell whether the result is worth playing. This is where good games separate from technically working ones.

Step 6: Export and share

A finished prototype that only runs on your machine is a private hobby. Sharing it is what makes it a game.

The export step is where browser tools and real engines diverge hardest. Hosted browser tools usually give you a web link, which is fine for a game jam or itch.io but cannot go on Steam. An engine you own exports a real desktop build. Summer Engine's free tier includes Steam and desktop export with no watermark and no revenue share, so the game you made is genuinely yours to publish. When you are ready, the Steam publishing guide covers the store side.

Where AI helps and where you still drive

Being honest about this saves you frustration.

AI does the building. Writing scripts, wiring input, placing nodes, generating art and audio, fixing the bugs it can see, exporting the build. The slow, mechanical work that used to gate beginners is now fast.

You do the deciding. Whether the game is fun, how hard it should be, what to cut, what your core loop actually is, and when something is finished. AI has no taste and no sense of scope. It will happily build a worse version of your idea if that is what you describe.

The people who ship games with AI are not the ones who found the magic prompt. They are the ones who kept the scope small, built one piece at a time, played their game constantly, and made the design calls themselves. The AI made all of that ten times faster. It did not make any of those decisions.

Start your first game

The fastest way to understand this loop is to run it once. Open a template close to your idea, type your first prompt, and press play. An afternoon from now you will have something playable, and you will understand the rhythm of building with AI better than any guide can teach.

Try the AI game maker and browse the templates to pick a starting point. Make the smallest version first. Then grow it.