FAQ
What is SimArena?
Section titled “What is SimArena?”SimArena is a browser workspace for robot models, scenes, simulation, data collection, and training workflows.
Do I need to install anything locally?
Section titled “Do I need to install anything locally?”No. SimArena is designed to work in the browser.
You do not need to install ROS, MuJoCo, CAD software, or a local simulation environment to get started.
What engines does SimArena use?
Section titled “What engines does SimArena use?”For light work, SimArena can use in-browser engines such as MuJoCo WASM, Rapier, or PhysX.
For heavier jobs, CodecFlow can route simulation and training work to cloud-backed engines through Fabric.
Can I import existing robots or environments?
Section titled “Can I import existing robots or environments?”Yes. SimArena is designed to support importing robots and environments.
The URDF builder supports robot structure, meshes, collision shapes, mass properties, and export paths for common robotics formats.
What formats does SimArena support?
Section titled “What formats does SimArena support?”SimArena is built around common robotics workflows such as URDF, MuJoCo XML, and Isaac Sim formats.
For datasets, SimArena can export demonstration episodes in LeRobot format and other standard formats.
Can I collect training data in SimArena?
Section titled “Can I collect training data in SimArena?”Yes. You can load a scene, record demonstration episodes, capture simulation outputs, and export the data for training and evaluation workflows.
The goal is to make the loop from scene setup to data collection to training shorter.
Can I train models with CodecFlow?
Section titled “Can I train models with CodecFlow?”Yes. SimArena supports setting up training workflows from collected data.
CodecFlow is designed to support reinforcement learning and imitation learning recipes.
Can I run simulations programmatically?
Section titled “Can I run simulations programmatically?”Yes. SimArena is designed to support headless API workflows so teams can run and evaluate scenes programmatically.
This is useful for automated testing, regression checks, and CI-style robotics workflows.
Does SimArena replace MuJoCo, Isaac Sim, or Genesis?
Section titled “Does SimArena replace MuJoCo, Isaac Sim, or Genesis?”No. SimArena is a workflow layer around simulation, data collection, and training.
It helps builders set up scenes, run simulations, collect data, and route heavier jobs to the right backend instead of managing every tool separately.