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Creator
Rocky, Project Hail Mary (Maya Rig)
Super appealing 5-armed rock creature featured in the Project Hail Mary movie.
Includes a custom Animpicker. IK/FK arms, full-space switch options, and two optional biomes; a portable sphere with an auto-roll option; and a suit like the one shown in the movie.
Part of our free Maya rigs collection. Browse all 70 free rigs
Freefree to download
New this week - v1.0
- Version
- 26
- Downloads
- 29 Sep 2026
- Last updated
- 29 Sep 2026
- Released
- Works with
- Maya + mGear
- Licence
- Free
- File size
- 388 MB
Maya
mGear
Instant download Vetted creator
Latest rig updates
Rocky is out
Everything the rig ships with. What you get on day one:
Autodesk Maya
Built for Maya and ready to drop straight into your animation workflow.
Production ready
Designed for real-world animation workflows, from blocking to final polish.
Watch it move
Rocky, Project Hail Mary (Maya Rig) in motion
Additional information
The details
- Software
- Maya 2024 or newer
- Rig system
- mGear 5
- Type
- Creature, five arms
- Facial
- None (Rocky has no face)
- Price
- Free
Requirements
Maya+mGear
- Maya and mGear
Licence terms
Free
Free to download and use in your own animation work.
About this rig
Rocky, Project Hail Mary, mGear 5 Maya rig
Rocky is the Eridian from Andy Weir’s Project Hail Mary, now on screen in the Amazon MGM Studios film. This is the official 3D printable model of Rocky, tweaked so it deforms in a rig and built on mGear 5 by Emilio Serrano. It is free.
3D STL model courtesy of MGM Amazon: the official Project Hail Mary 3D model.
A super charming five-armed creature with animatable top rocks, ideal for body mechanics and creature studies. The rig comes with two biomes: a sphere and a portable dodecahedron. The sphere has auto-roll rigging, so it rolls as you move it.
What you get
- The tweaked STL model as a Maya scene
- Five arms and the top rocks, all animatable
- The sphere biome with auto-roll
- The portable dodecahedron biome
Who it is for
Animators after a creature that is not a biped. Rocky has five limbs and no face, so posture and rhythm do all the acting. That makes him a good test of weight, timing and appeal, for a creature reel or a scene from the book or the film.
Requirements
- Maya 2024 or newer
- mGear 5, installed and loaded
- No facial rig and no props. Rocky has no face, and the biomes are part of the rig.
Questions
Common questions about Rocky, Project Hail Mary (Maya Rig)
Do I need mGear to use the Rocky rig?
Yes. The rig is built on mGear 5, which is free and open source. Install mGear 5 in Maya 2024 or newer, load it, then open the scene.
Is this the official Rocky model from Project Hail Mary?
The mesh is the official 3D printable model of Rocky released by Amazon MGM for the film, tweaked by Emilio Serrano so it deforms well in a rig.
What are the two biomes?
A sphere and a portable dodecahedron, the environments Rocky lives in aboard the ship. The sphere has auto-roll rigging, so it rolls as you move it.
Does Rocky have a facial rig?
No. Rocky has no face, which is the fun of animating him: everything reads through the five arms, the top rocks and posture.
Which Maya version does the Rocky rig need?
Maya 2024 or newer with mGear 5 loaded. It was built and tested in Maya 2024.
What animators say
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Vetted
Every rig on Animworks is checked by our team before it goes live.
Supported
Questions and bug reports go straight to Emilio Serrano, or email support@anim.works.
Yours to keep
It lands in your downloads the moment you check out, and stays there.
Community
Share your feedback on the rig
Animating with Rocky, Project Hail Mary (Maya Rig)? Post your shots in the Discord, ask Emilio Serrano a question, or tell us what you would want in the next version.
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