SLAPJAM.AI

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How to make the best AI game

You have two days. The winning move is to let AI do the parts you are slow at and spend your own time on the one thing that makes the game fun. Pick one tool per job from the list below, keep the scope tiny, build in portrait from the first minute and test in a browser before you polish anything. Sponsored tools support the jam and are listed first in their category.

Make games on your phone

Jamboree

Build and publish mobile games end to end on your phone, 100% free. Create characters and sounds, edit animations, tweak every element with quick edits, or bring your own drawings to life. Jamboree games play in the browser, and our converter turns yours into an itch.io-ready entry. The best game made with Jamboree will be featured on Jamboree's Explore page.

Writing code

Ziva

AI agent that lives inside the Godot editor. It writes GDScript, builds scenes and nodes, and fixes errors in place, so a solo dev can ship a full game in a weekend. First prize includes a month of Ziva Ultra.

Rosebud AI

Describe a game to Rosie, its AI agent, and refine it by chat while it writes the code, art and sound. Games run in the browser on desktop and mobile. The best game made with Rosebud wins $100. Submit it with our link converter.

Cursor

AI-first code editor. Excellent for any engine whose project is plain text: Godot, Phaser, Unity C# scripts.

Claude Code

Terminal coding agent that reads your whole project, edits many files at once and runs your build and tests.

Codex

OpenAI’s coding agent, in the cloud and in your terminal, for larger tasks you can hand off and review.

Ludus AI

AI toolkit for Unreal Engine: C++ and Blueprints, scenes, sound, models and VFX from inside the editor.

Bezi

AI assistant for Unity projects. It indexes scenes, prefabs and scripts, and its agent mode applies reviewable changes.

Summer Engine

Prompt-to-game engine built on Godot 4. Describe the game, get a real project, export to web.

Runtime AI engines

Convai

NPCs players can talk to by voice or text, with lip sync, memory and in-game actions like follow or pick up. The web SDK runs in the browser, and Unity has an official WebGL guide. The three highest-rated games built with Convai each win a year of Convai Scale.

ElevenLabs Agents

Voice agents that connect straight from a browser game with an agent ID, and can call functions in your game.

Player2

Free for developers: players sign in and the AI runs on their own Player2 account. Has an official Godot plugin.

Music

Suno

Full songs and loops from a text prompt. Ask for a loopable instrumental in your game’s mood and export a few variations.

Udio

Another strong music generator, good for stingers, menus and short themes.

Voice and sound effects

ElevenLabs

Character voices, narration and a text-to-sound-effects model for jumps, hits, coins and UI clicks.

Images and pixel art

AutoSprite

Turns one character image into a game-ready animated spritesheet, with walk, run, attack and idle, in seconds. Skips the slowest part of 2D animation. First prize includes a month of AutoSprite Pro.

PixelLab

Generates pixel-art characters, animations and tiles in one consistent style, plus a game builder. First prize includes a year of PixelLab Tier 2.

Retro Diffusion

Pixel-art model that outputs clean sprites, tiles and animations at real pixel sizes. The fastest path to a consistent 2D look.

ChatGPT

Image generation and editing for concept art, backgrounds, icons and store art, with good text rendering.

Claude

Art direction, colour palettes, prompt writing, and it produces SVG icons and UI elements directly.

Midjourney

Painterly key art and mood boards. Great for your itch.io cover and social posts.

3D models

Meshy

Text and image to 3D with textures and rigging. Exports GLB that drops straight into Godot or Unity.

Tripo

Fast text-to-3D and image-to-3D with clean topology options for game-ready meshes.

Rodin

High-detail image-to-3D generation for hero props and characters.

Hunyuan3D

Tencent’s open 3D generation models, usable online or self-hosted.

Luma Genie

Quick, stylised text-to-3D for props you need in bulk.

Engines

Godot

Our recommendation. Free, small web builds, portrait projects in two settings, and the best AI tooling support. See the export walkthrough.

Unity

Web export works; expect larger builds and longer load times on phones.

Phaser

JavaScript 2D framework. If your coding agent is strongest at web code, this is the shortest path to a browser game.

Tips that win jams