A maintained collection of useful & free unity scripts / libraries / plugins and extensions.

If you want to suggest a link, then read the Contribution Guidelines first. Please report broken links, outdated assets and spelling mistakes. The links are in no particular order. This list is licensed under the GNU General Public License v3.0 and does only apply to this repository.

Navigation:

• GameObjects & Transforms
• Movement & Animation
• Controls & Input
• Character Controller
• AI & Pathfinding
• Physics
• Particles
• Meshes & Construction
• Materials & Shading
• 2D
• Networking
• VR
• Sound & Music
• UI
• Post-Processing & Rendering
• Mobile
• Debug
• Editor
  • Tools
  • Editors
  • Inspector Extensions
  • Importer
• Serialization & Web
• Social SDKs
• API Extensions & Helper
• Design Patterns
• Utilities
• Other

• RecyclerKit - pooling system.
• UnityOctree - octrees.
• In-Game Replay System - record and replay transforms.
• Unity Scene Query - library to traverse and query the Unity scene to find particular objects.
• UnityTools - Runtime transformation gizmos.
• Unity3DRuntimeTransformGizmo - Another runtime transform gizmo.

• List View Framework - create dynamic, scrollable lists.
• Reaktion - audio reaction toolkit.
• DOTween - tween engine.
• Camera Path Creator - create complex camera paths.
• Cinemachine BaseRig - procedural camera system.
• UnitySpritesAndBones - skeletal sprite animations.
• spine-unity - import spine animations.
• ikccd - IK Solver using Cyclic Coordinate Descent.
• Aim-IK - Procedural orientate character head (and chest) in a direction without using any animation data.
• RecordAndRepeat - Record and playback of custom data via the timeline.

• InputManager - a powerful input manager.
• TouchScript - multitouch library.

• Unity 2D Platformer Controller - 2d platformer character controller.
• CharacterController2D - 2d character controller.
• SuperCharacterController - 3d character controller.

• A Star Pathfinding for Platformers - A* for platformers.
• Astar for Unity - A* pathfinding.
• A* Pathfinding Project - A* pathfinding.
• UnitySteer - steering, obstacle avoidance and path following behaviors.
• SimpleTraffic - a simple traffic simulation using Nav Mesh.
• Self-driving-vehicle - Car pathfinding using Hybrid A* search algorithm.
• GOAP - Multithreaded Goal Oriented Action Planner for Unity.

• Mario Galaxy Gravity for Unity - mario galaxy gravity.
• Ocean Community Next Gen - water physics/shader.
• Voxel GPU Physics - GPU accelerated voxel physics.
• Interactive Erosion - Runtime fluid erosion for terrain.

• KvantSpray - gpu accelerated particles.
• NVIDIA Hair Works Integration - Nvidia hair works.
• Ember Particles - turbulent ember particles.
• SPHFluid - Interactive 3D Fluid Simulation based on SPH.

• ProceduralToolkit - procedural mesh toolkit/generator.
• Draw - draws primitives with lines.
• VolumetricLinesUnity - volumetric lines.
• giles - 3d runtime level editor.
• Voxelmetric - voxel framework.
• Procedural Shapes for Unity - procedural shapes.
• ICO Sphere Mesh Creator - procedural ico spheres.
• Vertex Painter - paint information onto vertices.
• FacePaint - paint triangles of meshes.
• Simplygon - mesh optimization & lod generation.
• TextMesh Pro - generate text with custom styling.
• meshcombinewizard - combines all meshes on the chosen gameObject and its children that share the same material.
• RoadArchitect - road system creator featuring dynamic intersections, bridges, etc.
• DrawLine - procedural line mesh tool.
• Deform - a framework for deforming meshes in the editor and at runtime in Unity.
• 2.5D Destruction - breaks 2D sprites into 2.5D fragments.
• MetaBalls Liquids - liquid simulation using MetaBalls.

• Projects by RM - wet surface & skin shader.
• Ocean Community Next Gen - water physics/shader.
• Flow Map Shader - flow map shader working with sprites.
• VertexPaint - additional vertex streams.
• ShaderProject - shader collection.
• Skybox Plus - a collection of skybox shaders.
• Outline Shader - outline shader which accomodates screen width and camera distance.
• Unity Sprite Uber Shader - 3D shading for sprites (e.g. normal mapping).
• Low Poly Shaders - material shaders optimized for Low Poly stylized meshes.
• Lux Shader Framework - Lux 2.02 pbr Shader Framework.
• Unity Wireframe Shaders - general purpose wireframe shaders.
• Hologram Shader - simple hologram shader.
• Kamakura Shaders - a collection of shaders and components focusing on Non-Photorealistic Rendering.
• Facepunch.Highlight - Mesh outline effect.

• UnitySVG - svg renderer.
• UnityStbEasyFont - text mesh generator.