Lua

Lua is the current top programming language for games. Extremely powerful and lightweight, it has acquired a good reputation among game developers and was used in numerous hot software projects, including mobile (Angry Birds) and desktop (World of Warcraft) games and industry products (Adobe Lightroom). The fastest of the scripting languages, Lua runs on all platforms (Unix, Windows, iOs, Android, WinPhone, etc), combines with other languages (Java, C#, C++, Perl, Ruby, Erlang, etc.) and is 100% free.