I love Lua, it's definitely underrated. My first experience using Lua was via Indigo Rose Setup Factory, it uses Lua for scripting installer logic and the thing

I love Lua, it's definitely underrated. My first experience using Lua was via Indigo Rose Setup Factory, it uses Lua for scripting installer logic and the thing I love most is how easy it is to learn (even easier than a language like PHP). A few hours and you've grasped most basic concepts and conventions, if you already know another language you'll find the learning curve further reduced once more.