Dynamic Parkour System is a FREE plugin for Unity that allows anyone to import any model and have an already working controller with parkour capabilities like in Assassin's Creed games.
UTween is an interpolation animation component for Unity. You can quickly configure animations through built-in components or write animations through code.
Unity PlayerPrefsExtra gives you the ability to save more complexe data types such as : Vectors, Bool, Colors, Lists, ... and it uses the Unity's PlayerPrefs behind the scene.
[Unity3D] Unity Presets HDRP - A Library full of content: Free Unity Scripts / Art / Tools that can be used for unity projects copyright free. - Marcel van Duijn
[Unity3D] Unity Presets - A Library full of content: Free Unity Scripts / Art / Tools that can be used for unity projects copyright free. - Marcel van Duijn