Obi Fluid – Free Download

Obi is an advanced particle-based physics engine capable of simulating a wide range of deformable material behaviors, capable of running both in the CPU and the GPU.

For more details this asset from the Unity Asset Store: Click Here

This is a paid asset, but now you can download Obi Fluid for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.

Obi Fluid v7.1 (17 Jun 2025) (Latest version)

VIP Only

Obi Fluid v7.0.4

VIP Only

Obi Fluid v6.5.4

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“If possible, please buy the package to support the developer”

With Obi Fluid you can create fully multi-threaded AAA quality fluid simulations with ease. Fluids react to each other, can affect and be affected by rigid bodies (even make them float or sink!), and are capable of sticking to surfaces.

Please note that fluid simulation is a very intensive task. Be aware of its performance implications before using it.

Available for Windows, Mac, iOS and Android.

Links
Obi Website
Community and Support Forum

What to use it for:
– Small scale fluid simulations
– 2D fluid game mechanics
– Dripping fluid
– Splash effects

What NOT to use it for:
– Large scale fluid simulations
– Pools, oceans, lakes, floods

All physical properties or the fluid are adjustable: viscosity, density, surface tension, stickiness, vorticity…

Features:
– Custom emitter shapes.
– Two-way rigid body interaction.
– Modular solver: don’t waste performance, all parameters are exposed.
– Adjustable solver iteration count.
– Per-particle properties: surface tension, vorticity, buoyancy….
– Hassle-free particle resolution adjust using a single parameter.
– Supports fluids of different resolution interacting in the same simulation.
– Supports high density ratios in multiphase simulations.
– Supports Box, Sphere, Capsule, Mesh, Character and Terrain colliders.
– Automatic camera culling: non-visible fluids do not update their simulation.

Get paid unity asset for free