Trans (short for Transmuter Programming Language) is an extremely dynamic, biologically-inspired prototyping language providing a framework for experimenting with naturally evolving systems of objects over the net, and for exploring new ideas about recombinant software, code morphing, and evolutionary programming. Trans is also a very capable general-purpose programming language. It's fast, flexible, compact, object-oriented, highly extensible, and easy-to-learn. It can be used for rapid prototyping, or as a scripting language, an embedded language, a network server or client, a system of cooperating network nodes, a real-time control and monitoring system, and more.
Factor is a dynamically-typed stack-based programming language. Factor runs on various OSes and CPU architectures, and provides an optimizing compiler, interactive development environment, powerful collections, higher order programming, continuations, and a growing library of contributed code.
Nemerle is a hybrid (functional, object-oriented and imperative) programming language for the .NET platform. The key features of the language include C#-like syntax, easy access to functional, object-oriented, and imperative features, powerful code-generating macros, variants, pattern matching, static and on-demand dynamic typing, and type inference.
Tao is a software package for sound synthesis using physical models. It provides a virtual acoustic material constructed from masses and springs, which can be used as the basis for building quite complex virtual musical instruments. It comes with a synthesis language for creating and playing instruments and a C++ API for those who would like to use it as an object library.
h2incn tries to directly convert C/C++ headers to Nasm-style include files, and can be used in a makefile. It is useful if you want to use the same structures or external variable declarations in C and assembler code, and you don't want to use two separate files and update both each time you change something. It is written in a mix of C and C++ code. It currently works for simple files.
Sh is a programming language built on top of C++. It can be used to write shaders that run on top of modern graphics processing units (GPUs), or write stream programs that run on GPUs or CPUs. It is implemented as a C++ library, and allows programs to be generated at run-time using a number of metaprogramming techniques. Variants of programs for different cases can easily be generated, or programs can be generated entirely at run-time from some input data. The system is cleanly separated into a frontend and backend, and is hence portable.
appx BANG! (Business Applications Next Generation) is an integrated suite of financial accounting and distribution applications. It is appropriate if you are looking for business applications that can be easily customized and enhanced to meet the exact needs of your business. Its applications include general ledger, payables, receivables, payroll, inventory, order entry, commission accounting, purchase order control, and sales analysis. It uses an Internet-enabled client-server implementation that is scalable and platform independent.