I make Flockbay, one of the tools below, so here is how I picked. Each of the other 7 was read on its own site or repository on 2026-11-02, the table at the end links the page behind every row, and every section says where another tool is the better pick than mine.
Flockbay is a free AI game maker built on Godot: the download, the editor and the AI are free, with free hosted AI every day or your own Claude, ChatGPT, agent or API key, and optional plans for more hosted AI. The others are free up to a point: a small monthly AI allowance, your own subscription, or export and commercial rights behind a plan, and Summer Engine charges for its hosted AI. The table below says where each free tier stops, read from each tool’s own pages.
Source: https://flockbay.com/free-ai-game-maker/ · Updated 2026-11-02
Free in an AI game maker means one thing: who pays for the tokens
Every tool in the table below gives you some of it for nothing, and every one of them has the same bill underneath: each tool call your agent makes and each GDScript file it writes is model inference, and inference costs money per token. A 3D model or a sound from a generator costs money per job. So when a page says free, the useful question is not whether, it is who pays that bill and on what terms.
There are three answers. The first is a credit allowance: the vendor pays for a small amount of inference, as a trial or a monthly allowance, then meters you. Ziva’s Hobby plan, GDevelop’s 40 AI credits a month and the 14-day trial of Unity’s AI tools on Personal all work this way. The second is export-gated free: you can build, but downloading the project, commercial rights or removing a watermark sit behind a plan. Rosebud puts project code download on a paid plan. The third is bring your own model: the tool costs nothing and the inference runs on an account you already have, so the only bill is the one you were paying anyway.
Flockbay is the third kind, and it is also the first: every account gets free hosted AI every day, marked Demo in the model menu. When a day’s free usage is spent, Hobby keeps you building, with usage every month, your own Claude or ChatGPT is free, or the allowance resets at 00:00 UTC. You can also build on the Claude or ChatGPT plan you already pay for, on your own agent or on your own key, and you pay that company, never Flockbay. Plans for more hosted AI are optional.
Flockbay is free: free hosted AI every day, or your own Claude, ChatGPT, agent or API key
Your Claude plan. Pick Claude in the model menu and Flockbay runs Claude Code, Anthropic’s coding agent, behind its own chat, on Claude Pro or Max. Claude Code ships inside the Windows app, and on a Mac Flockbay uses the one you installed or installs it with Homebrew. You sign in on Anthropic’s page. The free Claude plan does not include Claude Code, so it does not work. On Windows, macOS and Linux.
A ChatGPT sign-in. Flockbay’s chat can run on your ChatGPT account, on any plan, Free included, through the Codex engine that ships with the app. OpenAI sets how much each plan can use.
Your own agent over MCP. Claude Code, Codex, Cursor or any MCP client connects to Flockbay’s MCP server and drives the open Godot editor: scene edits with undo, running the game headless or in the Game screen, reading stdout and GDScript parse errors with file and line, injecting input events and capturing the viewport. Flockbay charges nothing for the connection; you pay your agent’s provider exactly what you pay them now. The Godot MCP guide has the setup for each client.
Your own API key (BYOK). Paste an OpenAI or Anthropic key and Flockbay’s own chat runs on it, billed by your provider per token. Generated pictures, 3D models and sound run on your own Tripo and ElevenLabs keys the same way.
Demo, Flockbay’s hosted AI. Every account, guests included, gets free hosted AI every day, and it resets at 00:00 UTC. When a day’s free usage is spent, Hobby keeps you building, with usage every month, your own Claude or ChatGPT is free, or you come back after the reset. Pictures and sound run on that free usage. A 3D model uses your own Tripo key.
What is free with no asterisk
The engine. Flockbay bundles the official Godot, not a fork, so stock Godot opens the same folder.
The project. It is a real Godot project on your disk: .tscn scenes, GDScript, your assets. There is no export gate, no watermark and no revenue share, and it keeps existing if you stop using Flockbay.
The editor. Flockbay builds the scenes, props and player controller, and Godot’s own 3D and 2D editor is there in the Standard and Full views, with the editor’s undo, for the calls you would rather make yourself. A change you make with them by hand makes no model call, so it costs nothing.
Playtesting. The game runs locally on the bundled Godot. Pressing Play, and the runs your agent starts to check its own work, cost nothing beyond the tokens the agent spends reading the results.
What free does not cover
Inference past the daily allowance. Flockbay pays for each day’s free usage on its hosted AI, which resets at 00:00 UTC. Past it, on your own Claude, ChatGPT, agent or API key, you pay that company; on a Flockbay plan, you pay Flockbay for more hosted AI.
Offline building. The chat, asset generation and world data come over the network, so building needs a connection. Playing the game you built does not.
Intel Macs. Flockbay runs on 64-bit Windows, Apple Silicon Macs and x86_64 Linux; on an Intel Mac, Ziva or the free Godot AI add-on with your own agent is the free route.
The app’s source. Flockbay is closed source. The engine is Godot and the project is yours; the app that builds it is ours.
What each AI game maker gives you free
Read from each product's own pages on 2026-11-02.
| Tool | What it is | Free to start | Paid from | Your own model | Your project |
|---|---|---|---|---|---|
| Flockbay | AI game maker built on the official Godot; Godot 4.6+ | Free hosted AI every day, or your own Claude or ChatGPT plan, agent or API key | Hobby $20, Indie Developer $60 and Studio $200 a month, for more hosted AI | Claude Pro or Max and any ChatGPT plan in the app, an agent over MCP, or an OpenAI or Anthropic key, all free from us | A Godot project on your disk; no export gate, watermark or revenue share |
| Ziva | AI agent inside the Godot editor | Hobby: $3 of AI to start, then 50 Ziva Baby messages a day | $20 a month (Basic) | Every plan can run on your own Claude Code or Codex subscription | Your stock Godot project |
| Summer Engine | AI game engine on its own build of a Godot 4.7.2 base | Free app: 5 AI messages a day, up to 30 a month; MCP free | $20 a month (Pro) | Not for its hosted AI; your own agent reaches it over MCP | Its docs say a project can go back to official Godot without the Summer-only AI features |
| Your agent + Godot AI | Free, MIT-licensed MCP server and editor add-on | Free; you pay your agent’s provider | Free | Whatever agent you run | Your own Godot 4.7 project |
| Your agent + GDAI MCP or Godot MCP Pro | Paid MCP servers and editor plugins | No free tier | $19 one-time (GDAI), $15 one-time (MCP Pro) | Whatever agent you run | Your own Godot project |
| Rosebud AI | AI game maker; Rosebud hosts the game | Newbie: free, 8,000 credits a week | $15 a month (Indie Dev) | Not stated on its pricing page | Commercial rights from the $30 plan; project code download on the $50 plan |
| Unity’s AI tools | In-editor assistant, AI gateway, MCP server and CLI, Unity 6 and later | Personal: a 14-day free trial | $10 a month for 1,000 credits (Personal) | The AI gateway runs a coding agent you already pay for, with no Unity credits | Your Unity project |
| GDevelop | No-code engine, open source (MIT), with an AI | 40 AI credits a month | $7.99 a month (Silver) | Not stated on its pricing page | Your GDevelop project |
Sources: Flockbay: Pricing, Your own agent; Ziva: Asset Store, Homepage; Summer Engine: Pricing, AI models, MCP, Godot migration; Your agent + Godot AI: GitHub; Your agent + GDAI MCP or Godot MCP Pro: GDAI MCP, Godot MCP Pro; Rosebud AI: Pricing; Unity’s AI tools: AI tools, Trial; GDevelop: Pricing.
Where another free route beats Flockbay
If you already pay for Claude Code, Codex or Cursor and want nothing new installed but an add-on, your agent plus the free Godot AI add-on is the cheapest route there is, on any desktop.
On an Intel Mac, Ziva’s free Hobby plan runs in stock Godot, and the Mac build of Flockbay is for Apple Silicon only.
If you never want to see code, GDevelop’s events and its 40 free AI credits a month are built for that person.
Questions
Is Flockbay really free?
Yes. Every account gets free hosted AI every day, marked Demo in the model menu. Claude Pro or Max, or any ChatGPT plan, Free included, also builds the game in the app, and your own agent over MCP or your own OpenAI or Anthropic key is free from us. Claude Free does not run here. Plans for more hosted AI are optional.
Does the free route expire?
No. It is not a trial. The free hosted AI is a daily allowance that resets every day at 00:00 UTC, and the app and your own model have no Flockbay time limit.
Does ChatGPT Free work?
Yes. A ChatGPT Free account signs in and builds, through the Codex engine that ships with the app. OpenAI sets how much each plan can use.
Is there a watermark, export fee or revenue share?
None. The game is a Godot project on your disk, and you can open it in stock Godot without Flockbay.
Which AI game maker is completely free?
None of them pays for your inference forever. The closest to zero is your own agent plus a free Godot MCP add-on, or Flockbay on your own agent, where the only bill is the model subscription you already have.
Do generated 3D models and sound cost extra?
Pictures and sound run on the free AI. A 3D model uses your own Tripo key. On your own keys, pictures run on a key you add, sound on ElevenLabs, and 3D models on Tripo.
Download Flockbay free: Free for Windows, macOS and Linux, AI included: free hosted AI every day, or your own Claude or ChatGPT plan, agent or API key. https://flockbay.com/
Related: Claude or ChatGPT with Godot, Godot MCP guide, Free vs paid AI game makers, Best free AI game maker, Summer Engine alternatives, AI game maker
I make Flockbay, a free AI game maker built on Godot. The original is on flockbay.com.
Top comments (0)