01
Build your game in Summer Engine.
Summer AI lives in the desktop app. Make the assets in Summer Studio.
The AI Game Engine
Create real 2D and 3D games through conversation. No coding required. Export to Steam, desktop, and mobile.
No game in mind? Find your game idea
In-engine recording
In-engine recording
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 Steam, itch.io, or wherever you want. Summer Games, our own store, is launching soon. You own your game.
02
Launch it on Steam or itch.io.
Share an early build, playtest with friends, and publish when you are ready.
03
Grow your game with playtests and player feedback.
Watch how people play, set your price, and plan the next update.
Features
#1 Assets
Make 2D and 3D
Models, video, sound effects, music, dialogue, and cutscenes. The frontier models are in Summer Studio.
#2 AI
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.
#3 Multiplayer
Add multiplayer
Deploy multiplayer, hook up networking, and read the skills. You can ship a full multiplayer game.
#4 Store
Summer Games is launching soon
Our own store for games made with Summer is not open yet. Until then, release on Steam or itch.io.
#5 Analytics
Player analytics is coming
Add events to what you want to measure and see how the game performs. Coming soon.
#6 Platforms
Ship desktop builds
Export for Windows and Mac today. Mobile needs each platform's own toolchain, and browser play is a research preview.
Discover templates
Start your next game with a template
Also supports MCP
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.
Explore MCP setupBring your imagination to life.
Start in plain English and let Summer draft scenes and GDScript. Review the changes, test the game, and edit the code whenever the result needs correction.
Natural Language Scene Construction
Auto-configured Physics & Collisions
One-click Character Controller setup
Become orders of magnitude more productive.
Write games in C++, GDScript, or C#. Summer stays backward compatible with Godot.
C++, GDScript, and C#
Game-dev skills and playbooks
Local testing and documented export steps
Real user quote
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
Build your game with Summer.
No credit card required. macOS and Windows available.