# The AI Game Engine > The AI game engine for people and agents. Build real 2D and 3D games with Claude Code, Codex, Cursor or Summer Agent, publish on Summer Games or Steam, and earn. Build real 2D and 3D games, publish them on Summer Games, Steam or your own site, then track, grow and earn from them, all in one place. [Download Free](https://www.summerengine.com/#download) [Browse Templates](https://www.summerengine.com/templates) ## Build it. Launch it. Grow it. Create your game in Summer Engine with AI, or by connecting MCP. Make any asset you need in Summer Studio. Release it on Summer Games, Steam, itch.io, or wherever you want. You own your game. ## Build your game in Summer Engine. Summer AI lives in the desktop app. Make the assets in Summer Studio. ## Launch it on Summer Games, Steam or itch.io. Share an early build, playtest with friends, and publish when you are ready. ## Grow your game with playtests and player feedback. Watch how people play, set your price, and plan the next update. - Pricing - Analytics - Playtests - AI feedback ## Features ### Make 2D and 3D Models, video, sound effects, music, dialogue, and cutscenes. The frontier models are in Summer Studio. ### Use our AI, or yours Chat with the AI in the engine. Or connect MCP and keep the agent you already use. MCP is free. ### Add multiplayer Deploy multiplayer, hook up networking, and read the skills. You can ship a full multiplayer game. ### Publish on Summer Games Our own store for games made with Summer. Steam and itch.io work too. ### Track your players Add events to what you want to measure and see how the game performs. ### Ship on all platforms Windows, Mac, iOS, Android and the web, all from Summer. ## Already use Claude Code, Codex, or Cursor? You can also use the engine for free with our MCP and CLI. Hook it up and keep the agent you already have. ```text Install Summer Engine and let's make a game. Read https://github.com/summerengine/summer, check what I already have installed, install whatever is missing, log me in, and scaffold a starter project so we can start building. ``` [Explore MCP setup](https://www.summerengine.com/mcp) ## Bring your imagination to life. Describe the game you want and Summer builds it with you in a full engine: 2D and 3D, physics, animation and real gameplay. Play it, change anything, and keep going. - Natural Language Scene Construction - Auto-configured Physics & Collisions - One-click Character Controller setup ## Become orders of magnitude more productive. A full engine for real games, built for people and agents. Use native C++ and C# when you want full control, and let your agent handle the rest. - Native C++ and C# - Game-dev skills and playbooks - Local testing and documented export steps ## Real builders are getting unstuck > I have a full time job and a 3 month old, so my programming time is work breaks and the occasional half hour here and there. This tool has made game making so much more accessible to me. BJ Games — Indie developer > I have wanted to make games since I was 10 and tried hundreds of times. I discovered this engine today, and I have been having a blast. I can finally do whatever comes to my mind and just focus on music and art. YakootEL — Composer and game maker > I am a QA automation engineer by day. This is the tool I have been looking for. I spent some time with Unity AI, but it is too expensive, and local LLMs with MCP get confused. Deulde — QA automation engineer ## Frequently Asked Questions ### Can I make a game without coding? Yes. You can make full games, scenes, gameplay, and assets just by chatting with Summer Agent or the agent you already use. If you want to write code, native C++ and C# are there too. ### Which platforms can my games launch on? Windows, macOS and the web. Summer exports desktop builds you can ship on Steam or itch.io, and web builds you can publish on Summer Games, where people play them in the browser. iOS and Android builds need that platform's toolchain and signing. Console versions need platform holder approval, usually through a licensed porting partner. ### Can I publish my game on Steam? Summer Engine can prepare desktop exports when the required export templates and target toolchains are installed. Store accounts, platform requirements, signing, review, and submission remain creator-controlled. ### Is it really free? Yes. The desktop app is free and includes unlimited projects. Paid plans unlock hosted Summer AI and advanced generation features, but you can build and export games without paying Summer royalties. ### Do I own the games I create? You own the code and assets you create. Export your game and choose where to distribute it. Each store has its own requirements; optional Summer services have their own terms. ### Is Summer a real game engine? Yes. Summer is a full engine for real 2D and 3D games, with physics, animation, a scene editor, and native C++ and C#. It is built for people and agents, with more than a million lines of custom code. ### How is this different from browser AI game makers? Browser AI game makers make web toys. Summer is a full engine for real games that you publish on Summer Games, Steam or your own site, then track, grow and earn from. ## Try Summer now. No credit card required. macOS and Windows available. - [Download for macOS](https://www.summerengine.com/download/macos) - [Download for Windows](https://www.summerengine.com/download/windows) - [Pricing](https://www.summerengine.com/pricing) - [Docs](https://docs.summerengine.com) --- ## Machine-readable resources - Site index for agents: https://www.summerengine.com/llms.txt - Full inlined content: https://www.summerengine.com/llms-full.txt - Porting catalog: https://www.summerengine.com/llms-porting.txt - Structured catalog: https://www.summerengine.com/agent-catalog.json - Sitemap: https://www.summerengine.com/sitemap.xml - Developer resources: https://www.summerengine.com/docs