OwenShow is an open-source file browser demonstrating various techniques/failures in Borland Kylix/Delphi code, including fork, drop/drag, and much more. Unlike other browers, directories are scanned explicitly and, if desired, to full depth, i.e. to get detailed descriptions of directory trees. Finding directories/files is supported by inexact/exact cumulative search.
EC-Laby is a small net-game with 2 teams of players running through a labyrinth to find the startroom of the other team. The first team which reaches the other startroom wins. There are features like chatting with other players and collecting points, and abilities to view a lab-map, set orientation points, insert oneways in the labyrinth, beam to other players, and insert question-doors in the labyrinth.