Astwar is a ncurses based simple space shooter; two little ships (asterisks), each on one side of the screen, try to shoot each other. There is network support with several multiplayer options and user extension with Scheme (via Guile) to program the little ship to do some things automatically are in the works.
libtour is a generic tournament processing library. The rules, participants, schedule, and results of a sporting tournament can be defined in the Scheme programming language and given to the library as input. A CLI application is provided as a reference client implementation. See http://freshmeat.net/projects/qtour/ for a Qt-based client.
Scheme Note is a Scheme-like music file format and MIDI conversion tool. It takes a text file, which is a representation of a song, loosely tied to a MIDI-like event structure, and outputs a corresponding MIDI file. It is hand-editable for simple songs, and should be very easy to parse for a GUI.
The mother modular generic compiler is designed to compile arbitrary computer languages to arbitrary assembler code. the desired language and assembler is specified as tables, so there is no need to generate something like a "cross compiler". Further, mother is modular, as it is made up of a set of separate tools which are used in the very Unix fashion of calling them in a pipe.
Bugloo is a source level debugger for the Scheme compiler Bigloo. It aims at helping to debug Bigloo programs compiled into JVM bytecode. It is implemented by means of the JVM Debugging Architecture, a set of standard APIs provided by Sun to make debuggers and profilers. Currently, Bugloo can debug Bigloo programs, Java programs, or a mix of both. It is based on the debugging model used in GDB and provides additional features like debug sessions, traces, memory debugging, programmable breakpoints and embeddable interpreters. It is a command-line debugger. For the sake of simplicity, it includes a graphical user environment for GNU Emacs or XEmacs.
GNU Mailutils is a rich and powerful protocol-independent mail framework. It contains a series of useful mail libraries, clients, and servers. These are the primary mail utilities for the GNU system. The central library is capable of handling electronic mail in various mailbox formats and protocols, both local and remote. Specifically, this project contains a POP3 server, an IMAP4 server, and a Sieve mail filter. It also provides a POSIX "mailx" client and a collection of other handy tools.
sr-convert is a sample-rate conversion utility for WAV files. It supports a wide variety of sampling rates and can convert from any of the supported rates to any other. It runs under either x86 Linux or Windows and uses SSE instructions if they are available. Great pains have been taken to make sure that the sound quality of the conversion is excellent.
RScheme is an object-oriented, extended Scheme implementation with a compiler that targets C or (RScheme's own) bytecodes. It has features expected from a modern language: an object system, reflection, modules, namespaces, safe macros, threads, a system call interface (including sockets), separate compilation, and persistence, as well as the formal basis and power of the Scheme programming language. RScheme also features a powerful, elegant foreign code interface.