We’re excited to introduce the Unity CLI, our new terminal-native path for connecting coding agents, CI pipelines, and custom tooling to Unity. Unity MCP remains fully supported for your existing setups but to help with the transition, the CLI includes an "MCP Mode," allowing you to leverage existing MCP-based... agents without starting from scratch. We want to remove barriers to innovation, so we are making these tools free! Both the CLI and MCP will be free, with no concurrency limits on the MCP server.show more

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it's a nice idea, but terminals should work INSIDE unity, not outside it. alt-tabbing between windows isn't the way to work with many tasks in today's world.

I was able to create something in less than 5 minutes with one prompt.. Crazy

Finally, there's a CLI! This is pretty good for making small games.

How much does it cost?

@TimSweeneyEpic can we have an unreal cli please?

@otsune AIと相性がよい制作環境が整っていくのをめっちゃ嬉しく思います！

No concurrency limits and free is huge.

Time to be a game dev 😀

To truly be “free”, people need an open source engine. For those wanting to run a first-class kind of game in a browser, that means a WebGPU open source engine.

This is great. Terminal-native access is exactly what you need for integrating agents into build pipelines. Having an MCP compatibility mode is a smart move for adoption too.

@jasonkneen Love unity

Your AI team clearly has no idea what open-source Unity AI projects on GitHub are capable of. You keep releasing inferior, paid versions of tools that the community already built for free. Honestly, what happened to Muse Texture, Muse Chat, and my personal favorite failure, Unity Sentis?

This is incredible. We’d never built a game before, made one in Three.js and it randomly took off. Right when we had no idea what to do next, this update dropped. Game’s almost done now. Unity nailed it this time:

unity being free for tooling is fine but i still remember the runtime fee announcement

unity making stuff free is my villain origin story in reverse like watching a final boss hand you a sandwich

Make me want to get into unity instead 😂

Latest game I made with it

Can’t wait to test this when I get home

Can wait to try it out.

@minirobenoire

Unity in your terminal. Free, fast, and agent ready. Let's connect

Try SparkLabs, it’s 100% free & open-source 🔥 True AI-Native Game Engine built for every creator!

Unity is still the best way to author content for VR. This is a great addition to the workflow!

the mcp mode here is smart; lets teams keep the old toolchain running while they test new pipeline integrations.

Do you publish skills we can import for our AI agents to learn how to use this new tool?

This post is very likely to get 1M views

Unity CLI becomes valuable when the AI can complete the entire verification loop: change - compile - read errors - enter Play Mode - run tests - inspect result Now, Surgical code modification is more efficient. It lets you know where every function is.

@unitygames Slop engine. Go!

so you’re saying i can use the free model of chat gpt and make the next fortnite thanks dood !!!

a free cli, what a deal..

Unicli already exists like unity mcp already existed, but I'll try this one

free with no concurrency limits is the part that actually matters for CI been burned by per-seat agent tooling costs before, this removes a real friction point 🔥

CLI is the right call. MCP is a great protocol but it's a layer on top of what most pipelines actually speak.