Download MiniScript Kit Free Unity. 

MiniScript is a high-performance, easy-to-learn scripting language for your game or simulation.

Written entirely in C#, and with Unity integration in mind, MiniScript is the best way to let your users (or your own development team!) script behaviors in your game. Applications include:

• Add mod support, enabling users to add custom behaviors, AI, or other features, without breaking your game!

• Create a programming game, where players write scripts to control tanks/robots/etc. in the heat of battle!

• Give your designers the ability to easily script cut scenes, AI behaviors, and more, even in already-compiled builds of your game!

MiniScript is compatible with all platforms, and runs in a carefully constructed sandbox — MiniScript code has access to exactly those Unity values and functions you provide.