Lua Showcase

Lua is used in many products and projects around the world. Here are some highlights. A different selection is shown every day.

World of Warcraft Snort VLC Wikipedia
Players of World of Warcraft use Lua to customize the game interface. Snort, a popular network intrusion prevention and detection system, is scriptable with Lua. The widely used VLC media player is scriptable in Lua. Wikipedia uses Lua as its template scripting language. Read the announcement.
Wireshark GitHub Grim Fandango Angry Birds
Wireshark, a popular network protocol analyzer, is scriptable with Lua. GitHub uses Lua scripts in the infrastructure of GitHub Pages, its static site hosting service. "Grim Fandango was the first game that shows Lua could not only be used to make a good game, but that it could be used to make some of the best games ever." (cited here; see also this) The widely popular game Angry Birds is mostly written in Lua. See a talk by Jaakko Lisalo at the Game Design Expo 2011.