Embedding Lua into C# with LuaInterface is so easy that it's almost embarrassing. The wrapper takes care of most everything and exposes a very easy to work with API.

Parrot is a virtual machine designed to efficiently compile and execute bytecode for dynamic languages. Parrot currently hosts a variety of language implementations in various stages of completion, including Tcl, Javascript, Ruby, Lua, Scheme, PHP, Python, Perl 6, APL, and a .NET bytecode translator.

LuaThread enables the Lua programmer to create preemptive, concurrent Lua programs, in which several threads of execution coordinately perform different tasks in parallel. The library runs both on Unix systems supporting the Pthreads standard and on Win32 systems (natively).
The functionality is provided in two parts: routines needed by Lua core to control parallel access to its internal structures and, independently, functions providing Lua scripts with the ability to create and synchronize multiple threads of execution.

Certain operations can be implemented in the form of filters. A filter is a function that processes data received in consecutive function calls, returning partial results chunk by chunk. Filters become even more powerful when we allow them to be chained together to create composite filters. Filters can be seen as middle nodes in a chain of data transformations. Sources and sinks are the corresponding end points of these chains. A source is a function that produces data, chunk by chunk, and a sink is a function that takes data, chunk by chunk. In this technical note, we define an elegant interface for filters, sources, sinks and chaining.

lua-functional provides a set of higher-order functions typically found in functional languages.

Kepler is an open source platform that brings the power of Lua to web development. There are a number of great Web development platforms out there but none balances portability, size, power and extensibility quite like Kepler does

Lua for Windows (LfW) combines Lua binaries, Lua libraries with a Lua-capable editor in a single install package for the Microsoft Windows operating system. LfW contains everything you need to write, run and debug Lua scripts on Windows. A wide variety of libraries and examples are included that are ready to use with Microsoft Windows. LfW runs on Windows 2000 and newer versions of Windows. Lua and its associated libraries are also available for other operating systems, so most scripts will be automatically cross-platform.

Following is a list of pages with sample code. Types of code include standalone reusable functions/classes, reusable modules, example code illustrating the use of other modules, tutorials on using other modules, full programs, and design patterns.