TuxKart is a 3D GoKart racing game with several famous OpenSource mascots participating. The game uses PLIB and OpenGL, and is portable to a wide range of OS's. There are several racecourses provided, with full information on how to add your own. Except for a few minor details, this game is essentially complete, and very playable.
IP-packetgenerator is a (ICMP/UDP/TCP)/IP packet generator written in Perl. When creating a TCP packet, it lets you specify the source and destination IP address, source and destination port, sequence and acknowledgement number, window size, and TCP flags. When creating a UDP packet, it lets you specify the source and destination IP and source and destination port. When creating an ICMP packet, it lets you specify the type, code, and mtu. Additionally, you can set the Time-to-live, set the fragmentation offset, send data within the packets, and select the number of packets to send over the wire. There are commandline and GUI versions. The configuration of packets can be read from a config file or saved to a config file.
Xmmix is an audio mixer utility for the X window system using the OSF/Motif interface. It works with the Linux sound driver as well as any UNIX system running the Open Sound System (OSS) driver. Xmmix is user-friendly and has the ability to save/retrieve mixer settings to/from files.
Sticker Book is a children's program which lets you place stickers on a background scene. You can resize, recolour and reorient the stickers that you use, and you never run out. You can even paint with them. The program is intended for the 3-7 year olds, but it's even fun for adults. It is flexible enough to make sophisticated pictures without being as complex as drawing/painting program.
Remote Methode Call is a project to enable calls to methods in remote C++ classes. The transport is implemented as a library, and is free from dealing with the internal RMC stuff, so any C/C++ programmer is able to write a transport for his own purpose. RMC(2) currently has a sockets transport library as reference implementation. It is developed on Linux, and supports Linux on iX86 and PPC. RMC should also work on BeOS. Testers and developers are welcome to the project.