ALPINE EMPIRE

SIMPLE Collider

Stop wasting time on collision setup. Generate Box, Sphere, Capsule, Convex, and Mesh colliders directly in the 3D Viewport — ready for Unreal, Unity, or Godot.

See It In Action

01 WIDE SHAPE SUPPORT

Every Shape,
One Toolset

Pick the collider type that fits — see each one in action.

Animation showing box collider creation around objects in a scene

Box

Simple, efficient, covers a wide range of use-cases.

Sphere

The most efficient shape — defined mathematically, not by polygons.

Convex

Versatile and efficient, especially without native mesh collisions.

Convex Cylinder

A clean cylindrical convex shape for common manmade structures.

Mesh

The most accurate and most expensive shape — static objects only.

Re-Meshed

Voxelates complex geometry to remove unnecessary interior faces.

Capsule

Efficient and simple — the usual choice for character colliders.

K-DOP

14- or 18-DOP slabs — tighter than a box, cheaper than a full hull.

Animation showing collider generation per individual object across a selection

OBJECT & EDIT MODE

Whole Selections,
Individual Parts

Create colliders in Object or Edit mode, for an entire selection or specific parts of a mesh — including multi-object Edit mode. Choose pre- or post-modifier mesh data for full control.

✓ Per-object, per-selection, or per-loose-part generation

✓ World-aligned or object-aligned collisions for primitives

✓ Adjust creation settings live from the 3D Viewport

Animation illustrating collider creation based on Edit and Object mode selection

Animation showing Auto Convex collider decomposition based on an Edit Mode selection

AUTO CONVEX DECOMPOSITION

Break Complex Meshes
Into Convex Hulls

Auto Convex decomposes complex, organic shapes — rocks, statues, rubble — into a set of convex colliders. Not a one-click fix for every asset, but built for exactly the geometry that resists simple shapes.

✓ Powered by the V-HACD library

✓ Windows, Linux, and macOS — including Apple Silicon

✓ Depth setting trades hull count against accuracy

Example of Auto Convex collider generation showing how different depth settings affect the number of created colliders

Animation showing Oriented Minimum Bounding Box collider generation

ORIENTED MINIMUM BOX

The Tightest Box,
Automatically

An automatically-oriented box collider with the lowest possible volume — same output as a regular box collider, indistinguishable to the engine, just tighter around the mesh.

Implementation based on code by Iyad Ahmed, used with permission.

NAMING PRESETS

Name It Once,
Every Engine

Save naming settings as presets, switch between them per project, and share the preset files with your team. Ships with read-only UE-default and Unity presets — pin one to load automatically on startup.

Animation showing collider naming presets being selected

Animation showing mesh to collider conversion

CONVERT WORKFLOW

Mesh, Collider,
or Empty — Any Direction

Convert any mesh to a collider, or any collider back to a regular mesh object, complete with renaming and collection assignment. Convert to lightweight Empty objects for engines that support empty-based collision.

Animation showing collider to mesh conversion

Everything Inside

One toolset, the whole collision workflow.

Re-Meshed Colliders

Voxelates complex, intersecting geometry before generating the collider, eliminating interior faces regular mesh colliders can't avoid.

Collider Organization

Manage visibility, selection, and deletion for groups of colliders at once.

Physics Materials

Assign and organize materials for use as physics materials in-engine.

Flexible Naming

Custom naming schemes for UE4-5, Unity, Godot, and other engines with their own pipelines.

Regenerate Names

Rebuild collider names from the active preset in one click.

Edit-Mode Multi-Object

Generate compound colliders across several selected objects at once, in Edit mode.

Built For Your Engine

Simple Collider covers the Blender side — these guides cover the rest.

Unreal Engine

UE4 and UE5 import Simple, and partially Complex, collisions out of the box.

Unreal Engine Guide ↗

Unity

Collider setup is automatic once meshes are named correctly — Simple Collider handles the naming.

Unity Guide ↗

Godot

Automatic -colonly / -convcolonly suffixes so Godot detects colliders on import.

Godot Guide ↗

Custom / Other Engines

Not on the list? Flexible naming presets mean Simple Collider isn't locked to UE, Unity, and Godot — build a custom naming scheme for any engine or in-house pipeline.

What Experts Say

Trusted in production pipelines at studios including Remedy Entertainment and KitBash3D.

"This addon is a must-have. It takes all the hassle and tedious work out of creating custom collision. So fast and easy to use, and it even takes care of naming and parenting with support for custom prefixes."

Richard Court, Principal Environment Artist at Studio Gobo

"This is something that a lot of people overlook on how much time it can take up on a project. With its intuitive interface and support for complex shapes, it's impressive how quickly you can get usable results."

Jeremiah Estrellado, Associate Art Director & Founder of The Dinusty Empire

"I am a huge fan of addons that reduce the steps and amount of clicks it takes me to do menial tasks. This addon is one of those. Its simple and clean and will save a lot of time for anyone making collision meshes in Blender for use in game engines like Unreal Engine. I wish I had this addon a lot sooner!"

Michael Kinsey, Senior Shader Technical Director at Thats No Moon Entertainment

"I have been lucky enough to be able to try Simple Collider in the past months and I can tell you that it became directly one of my favorite and most used add-ons. Everything is just so simple and powerful. Now I can create collisions in a matter of seconds for any assets or modular kit and spend all this extra saved time on more creative and fulfilling tasks!"

Jérémy Cerisy, Senior Environment Artist at Remedy Entertainment

"Making collisions is often the most annoying part of the art pipeline. I think anyone working in real-time 3D deserves to get through this moment the proper way. That's what this addon allows."

Arthur Chamerois, 3D Artist at Playdead

"This addon was extremely useful and made creating collisions quick and efficient. The entire modeling team used it and were able to pick it up very quickly."

"Simple Collider has proven to be an indispensable tool for our workflow, making it easy to create and manage colliders to meet our needs. The pie menu and Oriented Minimum Bounding Box have been absurdly helpful!"

"I love that if you have multiple objects selected, you can create colliders for all of them at the same time. This speeds up the process a lot."

Mike Reese, VP of Asset Production at KitBash3D

Why Trust Simple Collider?

Over a decade refining workflows for real-time engines. Simple Renaming, Simple Collider, Simple Export, and Simple Camera Manager are used and trusted by thousands of artists and studios worldwide.

Simple Renaming — 50,000+ users

Simple Export

Simple Camera Manager

Get Simple Collider

Handle the entire collision workflow in Blender — so you can stay focused on the asset, not the setup. Actively trusted by indies and studios alike.