An alternative/custom Minecraft server, written in Java, compatible with the original protocol. OpenCraft is built upon Apache MINA, SLF4J, Jython and XStream. The aim is to have features not in the official server distribution, like antigrief/scripting.
Fkmlandunter is a clone of the german card game "Land Unter". It runs over the network using the TCP/IP protocol for data transmission. A console client with ncurses and a QT client written in python and a GUI client using SDL are available.
Networked training tool for Air Traffic Controllers
Crujisim is a tool to allow Air Traffic Controllers trainees to practice in a radar environment. Different users connect to a hosting server to act either as controllers for adjacent positions or pseudopilots.