
Flip Fluids
by RLGUY
FLIP Fluids is a liquid simulation addon for Blender that lets you set up, run, and render high-quality liquid effects. Its custom FLIP-based engine has been in development since 2016 with tight Blender integration.
by BOSSposes·Simulation
Images © BOSSposes. Used for product review; image policy.
Test Pilot stands out in the superhive library for pairing visual aerodynamics simulation with quick setup and controls tuned for lower-end field PCs.
Test Pilot : Aerodynamics Test Simulator is a Blender add-on by BOSSposes for simulating aerodynamics visually. It was built with drone, plane and RC vehicle designers in mind, and can also be used for non-3D-print projects such as car designs. The aim is to test a model or design in a 3D simulated environment rather than wasting materials on test prints.
The add-on gives control over the fluid, smoke color, viewport coloring, density and temperature, along with simulation resolution that can be dialed down for low-end field PCs. You can create your own fans and turbines and get a visual of how the airflow works when in motion.
The interface is kept simple with almost no setup time, and hitting play (SPACE) starts the simulation. Documentation is included, and a demo video is available. Test Pilot is built for Blender 4.1 and 4.0 and is distributed under the GPL license.
Test Pilot : Aerodynamics Test Simulator is best for testing aerodynamic designs such as drones, planes, RC vehicles and cars in a 3D simulated environment before 3D printing.
Test Pilot : Aerodynamics Test Simulator is completely free to download and use.
Test Pilot : Aerodynamics Test Simulator is built for Blender 4.1 and 4.0, according to the listed compatibility. If you are running one of those versions, the add-on is designed to fit your setup. For other or newer Blender releases, compatibility is not stated here, so check the developer's page for the latest details before installing. Since it is distributed under the GPL license, you can also review the source to confirm how it behaves in your particular Blender build.
Test Pilot : Aerodynamics Test Simulator is distributed under the GPL license. That is the license noted for this add-on, and it governs how you can use, modify and share it. If licensing terms matter for your workflow or studio, review the specifics of the GPL and confirm the current terms on the developer's page. Documentation is also included with the add-on, which can help you get up and running once you have it in Blender.
Test Pilot : Aerodynamics Test Simulator is listed as free here in the catalog. Licensing can change over time, so for the most current terms it is best to check the developer's page directly before you download. The add-on itself is distributed under the GPL license, which covers how you can use and share it. That combination is worth confirming at the source if licensing details are important for your project.
Test Pilot : Aerodynamics Test Simulator includes a simulation resolution setting intended for low-end field PCs, so you can dial the resolution down when working on less capable hardware. Alongside that, the add-on exposes controls for fluid, smoke color, viewport coloring, density and temperature. This gives you room to balance detail against performance depending on the machine you are running. For a look at it in action, a demo video is available.
Test Pilot : Aerodynamics Test Simulator can be used for non-3D-print projects such as car designs, in addition to its focus on drones, planes and RC vehicles. It lets you simulate airflow visually in a 3D environment, so the same setup applies whether or not a physical print follows. You can create your own fans and turbines and watch how the airflow moves when in motion, then adjust settings like density and temperature to explore different scenarios.

by RLGUY
FLIP Fluids is a liquid simulation addon for Blender that lets you set up, run, and render high-quality liquid effects. Its custom FLIP-based engine has been in development since 2016 with tight Blender integration.

by VjaceslavT
Simply Cloth Studio 2 is a cloth creation and simulation add-on for Blender, rebuilt for Blender 5.0 with a modern interface, an adaptive wrinkle recognition system, and performance improvements, alongside tools for pinning, sewing, and cloth presets.

by BeFX Studios
RBDLab is a VFX and simulation addon for Blender, developed by BeFX Studios for rigid body and destruction work. It ships with documentation and free updates, and holds a 5-star rating from 70 reviews.

by Physical Addons
Physical Open Waters - Ocean is a Blender add-on from Physical Addons for infinite ocean simulations, offering advanced LOD stability and dynamic wave interactions. It renders in both Cycles and Eevee.

by naelstrof
Jiggle Physics adds stretchy jiggle physics to Blender rigs. A fork of the Wiggle 2 add-on by shteeve3d, it uses a verlet solver with simple 0-1 parameters to animate anything from soupy ropes to immovable rods.

by k44dev Software
X-Muscle System is a physics-based tissue simulator add-on for Blender, built for creating muscular systems, tissue and organic objects and running physical simulations that visualize skin surface deformations based on volume preservation of muscles, fat and bones.