NimBorg is a library for accessing Lua and Python libraries from within Nimrod code. It wraps the C API of these languages with macros which make the code far more readable than the low-level API, and also automatically handles the memory management interface of these languages so that objects aren't deallocated as long as they're accessible from your Nimrod code.
iCan is an intelligent, community-driven command line that helps you to automate any kind of task arising in your daily Linux use. It is extensible through simple Lua modules, which run in a sandbox environment. It is designed to learn what you do and make things easier for you, every time you do something.
RoseThorn is a cross-platform library for 2D and 3D games running on GNU/Linux (and possibly other Unix-like OSes) and Windows. Features include: hardware accelerated 2D and 3D rendering; Ogg and WAV Sound support with OpenAL; Lua scripting; BMP, JPEG, and PNG image loading and saving (from screenshots); easily created and modified user interfaces with XML and CSS, combined with Lua event handling; separate 2D and 3D libraries; support for multiple fonts in both TTF and bitmap formats; support for OBJ, 3DS, MD5, and RTM model formats; skeletal animation (a work in progress); support for UDP and TCP networking; thread and mutex support; a Simple Shader API; 2D animated sprites; and some basic cryptography support. There is simple event management, with key/mouse bindings easily customized from the in-game console, config file, command line, or GUI.
The Grind is a simple game about avoiding responsibility at work. The goal is to acquire as little work (as few "to-dos") as possible throughout your 9-5 workday. Wander around the cubicles and hide from the men in suits - if they're coming your way, that means they want to give you work! Use the arrow keys to move, space to start, and escape to exit.
TMake is a fast, lightweight, yet very powerful Build System. You can use TMake to build projects or create new ones. It supports C, C++, C#, Java, and Go compilers and over 100 different packages. It can perform C and C++ dependency checking. It is very fast. It uses for Lua for plain and simple build scripts. It has a GUI.