Stars
Makes your Unity window transparent and allows you to drop files
Excel for Unity. Provides both read and write with .xls and .xlsx
multiprocess buildpipeline for unity
make music synced game with Unity / ADX2 / Wwise
Unity editor tool which allow you to replace object name parts with another values and works with multiple objects simultaneously
Planar Shadow is very cheap and useful for mobile games.
Procedural, Dynamic Grass Shader for Unity
Character Controller for 2.5D Platformer on Unity
Open source Motion/Tweening Tool/Library with Visual Editor with code or no code and easy drag and drop support for Unity Engine
Graphy is the ultimate, easy to use, feature packed FPS counter, stats monitor and debugger for your Unity project.
Mesh sprites for Unity supporting 3d lighting.
Unity's Editor GameObjects Paint Tool for 2D Games. It contains both a custom window for objects palette + a customizable brush for paining.
Text-based simple hierarchy header, no fancy magic, just works
Baking spline deformation to a texture then applying it to a mesh via a shader.
Desktop Duplication API implementation for Unity (only for Windows 8/10)
This allows you to use Windows Graphics Capture / PrintWindow / BitBlt in Windows to capture multiple windows individually and easily use them as Texture2D in Unity.
paint 3D ivy in the Unity Editor, watch procedurally generated meshes simulate growth and clinging in real-time
Extend the Unity Toolbar with your own Editor UI code.
Runtime Inspector and Hierarchy solution for Unity for debugging and runtime editing purposes
A fully-featured deformer system for Unity that lets you stack effects to animate models in real-time
Unified Realtime/API framework for .NET platform and Unity.
Tool extension for the Unity Editor that enables easy access to the player preferences over a simple UI.