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Almost the same experience but with Love2D[1] instead of Corona.

After learning Lua I also suggest to take a look at MoonScript[2] a dynamic scripting language that compiles into Lua, you can think about it as the CoffeeScript of Lua.

[1] http://love2d.org/

[2] http://moonscript.org/

Codea (ios) is also nice. My first forays into Lua were hacking WoW UI components.

Likewise! For me, it was MOAI: http://getmoai.com/

Since I became a Lua programmer, I really can't stand any other languages, and I've rapidly switched to it for my scripting needs. Tables are just soooo lovely. ;)

I got my feet wet with Lua by writing custom OSC handlers for Renoise.

There were the expected "WTF?" moments but having something running and doing something practical is a great motivator.