a free / freeware open source tool for 2-D game development. It is designed for the Windows 9x/DirectX platform, and targeted at people spanning a range of skill levels.
to research and develop software that contributes to compelling and effective social interactions, with a focus on user-centered design processes and rapid prototyping.
single-process, multi-thread code-level debugger for 32-bit programs running under Windows. It allows you to debug and patch executable files in PE (Portable Executable) format. "Code-level" here means that you work directly with low-level bits, bytes and
port of the X Window System server to Windows. It shares the same source code base as Cygwin/X, but does not depend on the Cygwin environment or cygwin1.dll. Xming is a fully featured X11 server for Windows that is very simple to install and use.
a free Ruby-based environment aiming to make programming easily available to beginners, especially children. Its driving force was an essay titled The Little Coder's Predicament written in 2003 by why the lucky stiff (AKA why)
Visual Studio Shell (integrated mode) does not contain any programming language, so it provides the perfect foundation to deploy a development environment for your own language.
a complete rewrite of the NASM assembler under the "new" BSD License. Supports x86 and AMD64 instruction sets, accepts NASM and GAS assembler syntaxes, outputs binary, ELF32, ELF64, 32 and 64-bit Mach-O, RDOFF2, COFF, Win32, and Win64 object formats.