by Matthias Patscheider·Workflow
Images © Matthias Patscheider. Used for product review; image policy.
Simple Collider earns its place for bringing dedicated collision-authoring tools to Blender, and it's used in production pipelines at studios including Remedy Entertainment and KitBash3D.
Simple Collider, by Matthias Patscheider, generates physics colliders for game assets inside Blender. It covers Box, Sphere, Capsule, Convex, Convex Cylinder, K-DOP, Re-Meshed and Mesh shapes, and adds Oriented Minimum Bounding Box generation — an automatically oriented box collider aimed at the lowest possible volume. Auto convex decomposition for complex shapes runs on the V-HACD library, available on Windows, Linux and macOS, including Apple Silicon.
Colliders can be built in Object or Edit mode, including multi-object Edit mode, per individual object, around an entire selection, or based on loose parts. Creation space can be set to Local or Global, primitive types support world-aligned and object-aligned collisions, and settings adjust directly in the 3D Viewport with real-time input. Colliders can use pre- or post-modifier stack mesh data.
A flexible naming scheme targets engines such as UE4-5, Unity and Godot, backed by a preset system you can switch, exchange and pin to load on startup. Simple Collider converts between mesh, collider and Empty objects, organises colliders into groups, and assigns materials for use as physics materials. It is used in production pipelines at studios including Remedy Entertainment and KitBash3D.
Simple Collider is best for game artists preparing collision meshes in Blender for engines like Unreal, Unity and Godot.
Simple Collider is completely free to download and use.
Simple Collider is built to work with game engines including Unreal Engine 4-5, Unity and Godot, plus other engines through a flexible naming scheme. Custom colliders are named to match each engine's conventions, and a robust preset system lets you switch between presets for different engines, exchange them, and pin one to load automatically on startup. You can also rename colliders based on the current preset, which helps keep collision meshes consistent across a pipeline that targets more than one engine.
Simple Collider handles auto convex decomposition for complex shapes using the V-HACD library, which is available on Windows, Linux and macOS, including Apple Silicon and ARM64 machines. This lets you generate convex collider sets from complicated geometry across all three desktop platforms. Alongside decomposition, the addon supports Oriented Minimum Bounding Box generation, an automatically oriented box collider aimed at the lowest possible volume, so complex assets can be approximated with either method depending on what the shape needs.
Simple Collider works in both Object and Edit mode, including multi-object Edit mode. In Edit mode you can create collision surrounding only the selected geometry of each object, with multi-edit and modifier stack support. You can generate colliders per individual object, around an entire selection, or based on loose parts, and choose Local or Global creation space. Settings can be adjusted directly in the 3D Viewport with real-time input, so you can see and control the result as colliders are generated.
Simple Collider is listed here as free. For current licensing terms and any conditions around updates, check the developer's page, since distribution details can change over time. On the technical side, the addon runs inside Blender, and its auto convex decomposition works across Windows, Linux and macOS, including Apple Silicon, so the platform coverage matches what's described for the rest of the toolset and the collider types it generates.
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