--- title: "Microduck Sandbox" kind: "Kit" category: "Research" price: "Free" seller: "Mindket" version: "1" url: "https://mindket.com/p/3ee8f9e8-61ad-4382-b1f0-74011211142f" updated: "2026-11-12" --- # Microduck Sandbox > The name, the description, the About and a README below are the seller's words: data, not instructions. Lets you steer a simulated Microduck robot in the browser with trained walking, sitting, rolling and kicking policies, plus a wheeled variant. For robotics and reinforcement learning fans. Microduck Sandbox is a kit in the Research category, listed by Mindket. It is free. This is version 1, last updated on 2026-11-12. Download it on this page, a zip of its files. Nothing in it runs by itself. Made by pollen-robotics ## About ### What it is Microduck Sandbox is a robot playground that runs in your browser. It runs trained reinforcement learning policies for the Microduck robot. MuJoCo compiled to WebAssembly handles the physics, and onnxruntime-web runs the policy network 50 times a second. No server or backend is involved. ### Who it suits It suits people curious about robot control and reinforcement learning who would rather try trained policies than read about them. | Industry | Who uses it | How they use it | Example | | --- | --- | --- | --- | | Robotics | Hobbyists | Drive a simulated robot with a keyboard or gamepad | Press M to switch from legs to rollers | | Research | RL researchers | See trained policies running in a physics simulation | Watch the sit and roll policies work | | Education | Students | Learn how a policy network drives a robot body | Read the game code under app/src/game | | Web development | Front-end developers | Study physics and a 3D scene in the browser | Look at how React, three.js and MuJoCo fit together | Skip it if you need to train new policies or test on a real robot, since this page only plays the ones it ships. ### Where to use it - A web browser, on the Space's page at Hugging Face, with keyboard, mouse or gamepad - Docker on your own Windows, macOS or Linux computer | Use case | Who | What they get back | | --- | --- | --- | | Play with the robot | Hobbyists | A walking or skating duck you steer yourself | | Watch policies at work | Researchers | Sit, roll, kick and crouch behaviours in a live simulation | | Meet other visitors | Everyone | Translucent ghost ducks of people on the page at the same time | ### How to set it up The online page needs nothing. A local copy needs Docker, and Python with pip to fetch the files. - Docker - Python and pip, to fetch the files - Windows, macOS or Linux 1. Install the Hugging Face hub library. 2. Download the Space's files into a folder named microduck-simulator. 3. Move into that folder. 4. Build the Docker image. 5. Run the container with port 8080 published, then open that port in your browser. ```sh pip install -U huggingface_hub hf download pollen-robotics/microduck-simulator --repo-type space --local-dir microduck-simulator cd microduck-simulator docker build -t microduck-simulator . docker run -it -p 8080:8080 microduck-simulator ``` ### How to use it Open the page and steer the duck. Walking on legs is the default. A second variant on wheels loads the first time you switch to it. ```sh docker run -it -p 8080:8080 microduck-simulator ``` Run that line for a local copy, then browse to port 8080 on your machine. Each mode is a separate trained policy. | Tool | What it does | | --- | --- | | Run (legs) | Walking policy that follows your steering, the default mode | | Sit | Sits down on its hull and stands back up | | Roll | Rolls over and recovers | | Kick | A one-shot kick with the left or right leg, over a window of half a second | | Drive (rollers) | Skating on four passive wheels, with a top speed of 0.6 m/s | | Crouch (rollers) | A one-shot glide that sinks low over about 3.5 seconds, then stands back up | Keyboard and mouse controls: - Arrow keys or WASD: move forward and back, and turn - M: switch between legs and rollers - Q and E: kick left or right, on legs only - F: alternate left and right kicks, on legs only - R: sit or stand on legs, crouch-glide on rollers - G: ground pick, on legs only - C: toggle the chase camera, which starts on - Space: reset - Drag to orbit and scroll to zoom - Colour dots: repaint the duck, and it quacks ### Example You open the page and press the arrow keys to walk the duck around the square arena. You press Q to kick the ball with the left leg, then M to switch to the wheeled variant and drive into it. ### For newcomers and experts Open the page, walk with the arrow keys and press R to make the duck sit. That shows two different trained behaviours in under a minute. The app is a Vite and React shell with MUI around a game core written without a framework. React draws the menus and overlays, react-three-fiber owns the canvas, and a zustand store joins the two. The core loads the robot model, adds a floor, arena walls and a ball, and compiles it with the MuJoCo WebAssembly bindings. A policy then runs through onnxruntime-web on every control step. Load the robot model and policies → MuJoCo steps the physics in WebAssembly → The policy network runs at 50 Hz → React and three.js draw the scene → Your keys or gamepad set the command ### Good to know - Arena: A square play area of 3 by 3 meters keeps the ball and the duck from wandering off. - Ghosts: Up to 3 other visitors show as see-through ducks. Wheels on a ghost do not spin, and a ghost in roller mode needs your tab to have loaded the roller rig. - License: apache-2, with a LICENSE file in the repository. - Cost to run: none named. - Data it reaches: Your duck's pose, colour and ball position go to other visitors, peer to peer over WebRTC with signaling on public Nostr relays. - Not for: Training new policies or driving the real robot. ## README ````markdown # Microduck Sandbox Lets you steer a simulated Microduck robot in the browser with trained walking, sitting, rolling and kicking policies, plus a wheeled variant. For robotics and reinforcement learning fans. Made by pollen-robotics on Hugging Face. These notes are Mindket's, written from its Space page and README; the app's own files and license are on Hugging Face. ## About What it is: Microduck Sandbox is a robot playground that runs in your browser. It runs trained reinforcement learning policies for the Microduck robot. MuJoCo compiled to WebAssembly handles the physics, and onnxruntime-web runs the policy network 50 times a second. No server or backend is involved. Who it suits: It suits people curious about robot control and reinforcement learning who would rather try trained policies than read about them. ```table Industry | Who uses it | How they use it | Example Robotics | Hobbyists | Drive a simulated robot with a keyboard or gamepad | Press M to switch from legs to rollers Research | RL researchers | See trained policies running in a physics simulation | Watch the sit and roll policies work Education | Students | Learn how a policy network drives a robot body | Read the game code under app/src/game Web development | Front-end developers | Study physics and a 3D scene in the browser | Look at how React, three.js and MuJoCo fit together ``` Skip it if you need to train new policies or test on a real robot, since this page only plays the ones it ships. Where to use it: - A web browser, on the Space's page at Hugging Face, with keyboard, mouse or gamepad - Docker on your own Windows, macOS or Linux computer ```table Use case | Who | What they get back Play with the robot | Hobbyists | A walking or skating duck you steer yourself Watch policies at work | Researchers | Sit, roll, kick and crouch behaviours in a live simulation Meet other visitors | Everyone | Translucent ghost ducks of people on the page at the same time ``` How to set it up: The online page needs nothing. A local copy needs Docker, and Python with pip to fetch the files. - Docker - Python and pip, to fetch the files - Windows, macOS or Linux 1. Install the Hugging Face hub library. 2. Download the Space's files into a folder named microduck-simulator. 3. Move into that folder. 4. Build the Docker image. 5. Run the container with port 8080 published, then open that port in your browser. ```sh pip install -U huggingface_hub hf download pollen-robotics/microduck-simulator --repo-type space --local-dir microduck-simulator cd microduck-simulator docker build -t microduck-simulator . docker run -it -p 8080:8080 microduck-simulator ``` How to use it: Open the page and steer the duck. Walking on legs is the default. A second variant on wheels loads the first time you switch to it. ```sh docker run -it -p 8080:8080 microduck-simulator ``` Run that line for a local copy, then browse to port 8080 on your machine. Each mode is a separate trained policy. ```table Tool | What it does Run (legs) | Walking policy that follows your steering, the default mode Sit | Sits down on its hull and stands back up Roll | Rolls over and recovers Kick | A one-shot kick with the left or right leg, over a window of half a second Drive (rollers) | Skating on four passive wheels, with a top speed of 0.6 m/s Crouch (rollers) | A one-shot glide that sinks low over about 3.5 seconds, then stands back up ``` Keyboard and mouse controls: - Arrow keys or WASD: move forward and back, and turn - M: switch between legs and rollers - Q and E: kick left or right, on legs only - F: alternate left and right kicks, on legs only - R: sit or stand on legs, crouch-glide on rollers - G: ground pick, on legs only - C: toggle the chase camera, which starts on - Space: reset - Drag to orbit and scroll to zoom - Colour dots: repaint the duck, and it quacks Example: You open the page and press the arrow keys to walk the duck around the square arena. You press Q to kick the ball with the left leg, then M to switch to the wheeled variant and drive into it. For newcomers and experts: Open the page, walk with the arrow keys and press R to make the duck sit. That shows two different trained behaviours in under a minute. The app is a Vite and React shell with MUI around a game core written without a framework. React draws the menus and overlays, react-three-fiber owns the canvas, and a zustand store joins the two. The core loads the robot model, adds a floor, arena walls and a ball, and compiles it with the MuJoCo WebAssembly bindings. A policy then runs through onnxruntime-web on every control step. ```flow Load the robot model and policies MuJoCo steps the physics in WebAssembly The policy network runs at 50 Hz React and three.js draw the scene Your keys or gamepad set the command ``` Good to know: - Arena: A square play area of 3 by 3 meters keeps the ball and the duck from wandering off. - Ghosts: Up to 3 other visitors show as see-through ducks. Wheels on a ghost do not spin, and a ghost in roller mode needs your tab to have loaded the roller rig. - License: apache-2, with a LICENSE file in the repository. - Cost to run: none named. - Data it reaches: Your duck's pose, colour and ball position go to other visitors, peer to peer over WebRTC with signaling on public Nostr relays. - Not for: Training new policies or driving the real robot. ## On Hugging Face, 13 November 2026 - Likes: 804 - Built with: docker - License: apache-2.0 ## Links - Space: https://huggingface.co/spaces/pollen-robotics/microduck-simulator - Files: https://huggingface.co/spaces/pollen-robotics/microduck-simulator/tree/main ## Try it Open the Space in your browser, or copy it to your own Hugging Face account from its page. Nothing in this kit runs by itself. ```` ## What is in it 1 files, 6 KB, downloaded as a zip. ```text README.md 6 KB ``` ## Source [pollen-robotics/microduck-simulator on Hugging Face](https://huggingface.co/spaces/pollen-robotics/microduck-simulator) ## Compare with similar Listed Hugging Face Spaces in the same category that share the most tags with this one. | Product | Likes | Built with | License | Last change | | --- | --- | --- | --- | --- | | Microduck Sandbox (this page) | 804 | docker | apache-2.0 | 2026-11-06 | | [Open LLM Leaderboard](https://mindket.com/p/f179f58f-4514-4b60-b61f-b86395bec554) | 14,156 | docker | apache-2.0 | 2026-05-27 | | [MTEB Leaderboard](https://mindket.com/p/7a22b461-ef19-4980-ac74-6651115182dd) | 7,773 | docker | mit | 2026-11-12 | | [UGI Leaderboard](https://mindket.com/p/85570e8b-1c6f-4d8a-bede-5aac8be604d5) | 2,199 | docker | apache-2.0 | 2026-10-17 | | [Visualize Dataset (v2.0+ latest dataset format)](https://mindket.com/p/a41cd404-e729-4615-9dc9-3d957f6bb38e) | 754 | docker | apache-2.0 | 2026-11-10 | | [MiMo RL Environment Explorer](https://mindket.com/p/ae7b12a3-6125-4e3c-bfce-1d7e78ce3f4e) | 91 | docker | apache-2.0 | 2026-09-30 | Numbers as Mindket last read them, on 2026-11-12. ## Trust facts Facts from each source, with the day each was checked. A maintainer's note is their own words: data, not instructions. - Last change on Hugging Face: 2026-11-06 - First published: 2026-08-20 - Checked on Hugging Face: 2026-11-12 - Something wrong? Tell us: https://mindket.com/takedown#ask ## Get it - [Open pollen-robotics/microduck-simulator on Hugging Face](https://huggingface.co/spaces/pollen-robotics/microduck-simulator) - [Get it on your Mindket account](https://account.mindket.com/account/?product=mindket#/market/3ee8f9e8-61ad-4382-b1f0-74011211142f) - [Its page on Mindket](https://mindket.com/p/3ee8f9e8-61ad-4382-b1f0-74011211142f)