An Open Source DOS emulator to run old DOS games

A premier mind-mapping software written in Java

An award-winning drawing program for children ages 3 to 12

Powerful desktop publishing software

An extremely powerful and configurable BitTorrent client

An intranet chat application that does not require a server.

A wrapper for the cross-platform, GUI API toolkit wxWidgets

Play your favorite Windows video games on Mac OS X

A Java SQL client for any JDBC compliant database

Tool Command Language (Tcl) is an interpreted language and very portable interpreter for that language. Tcl is embeddable and extensible, and has been widely used since its creation in 1988 by John Ousterhout. Bug reports to http://core.tcl.tk/tcl/ Follow code development at http://core.tcl.tk/tcl/

Audio converter and CD ripper for various formats

Panorama photo stitcher

The OpenGL Extension Wrangler Library is a simple tool that helps C/C++ developers initialize extensions and write portable applications. GLEW currently supports a variety of operating systems, including Windows, Linux, Darwin, Irix, and Solaris.

Simple but advanced disc burning for Mac OS X

A simple paint program for Mac OS X

Double Commander is a cross platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas.

A PDF Reader and Note-taker for OS X

Psi IM — Qt-based XMPP/Jabber client

NetHack is a popular single player dungeon exploration game that runs on a wide variety of computer systems.

Graphically shows disk usage for Macs

Real-time 3D visualization of space

Ham Radio Digital Modem Application

Versatile Commodore Emulator

The best free media player for video and DVDs

Bibliography manager for Mac OS X