Infon Battle Arena is a networked multiplayer real-time programming game featuring little creatures fighting for food. You upload your Creature Code (written in Lua) to a game server using a telnet Interface. The game server then runs your code. The graphical client can be used to watch running games or replay recorded games.
Liquid PCB is a computer aided design application for designing printed circuit boards. Unlike other PCB CAD applications, you are not restricted to straight tracks and 45º angles. Instead, you can freely draw tracks any way you like, and the tracks themselves will move and bend as required to maintain your design rules. Vias and components are also free to move and rotate. The user interface exposes all functions through the multi-directional expanding mouse menu and the keyboard instead of through icons and menus.
LuaRocks is a deployment and management system for modules in the Lua programming language. It aims to provide facilities for Lua such as those from module systems of other scripting languages, such as Ruby's RubyGems or Perl's CPAN. LuaRocks allows Lua modules to be installed as self-contained packages called "rocks", which also contain version and dependency information.
MySQL Workbench is a cross-platform, graphical database modeling tool for MySQL. It allows you to create database models from scratch as well as by importing existing databases from SQL or DBDesigner4 models. You can then generate SQL code to CREATE databases, ALTER them, and export in various image formats and PDF/PS. Its extension system allows writing plugins and scripts in Lua, Python, and C++.
Naev is a 2D space trading and combat game, in a similar vein as Escape Velocity. Naev is played from a top-down perspective, featuring fast-paced combat, many ships, a large variety of equipment, and a large galaxy to explore. The game is highly open-ended, letting you proceed at your own pace.