Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler
A 32/64/16-bit Pascal compiler for Win32/64/CE, Linux, Mac OS X/iOS, FreeBSD, OS/2, Game Boy Advance, Nintendo NDS and DOS; semantically compatible with Delphi, Borland Pascal and Mac Pascal (partially) with extra features, e.g. operator overloading.
Versatile Commodore Emulator
VICE is an emulator collection which emulates the C64, the C64-DTV, the C128, the VIC20, practically all PET models, the PLUS4 and the CBM-II (aka C610). It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.
Emulator of Atari 800/800XL/130XE/5200 with various extensions (1088kB RAM, stereo sound and much more) running on just about every operating system (Unix/Linux, Windows, DOS, TOS, MacOS, Workbench, WinCE...)
uCON64 is a tool to backup all kinds of video games. It supports almost every available backup unit for cartridge-based consoles and performs many other tasks like ROM hacking.
SNEeSe is an emulator for the Nintendo SNES console for x86 PCs. SNEeSe is written in 32-bit C, C++, and NASM x86 assembly. Project goal is to make as accurate, functional, and usable an emulation core as is reasonably possible.
Nosefart plays NSF (NES sound format) files so you can listen to those old tunes without actually having to play the games. It runs in Linux, DOS/Windows, and as a plugin to various players, including Winamp and XMMS. It was mostly written by Matt Co
The well-known KQ console-style RPG.
Laser is a multiple arcade emulator available for several platforms. It uses Marat Fayzullin's Z80 and 6502 CPU emulators. It was originally based on Mike Green's SinVader.
A small and easy to use framebuffer graphics library
An IRC client that uses Tcl for not only the scripting, but also the "glue" at the C level for how all the parts of the application fit together.
IRE is a tile-based Computer Role-Playing Game engine based on Ultima 6, but with an emphasis on customisation and cross-platform support. Everything is controlled using scripts.
AfA-Scumm is the 2D adventure engine powering AmberfishArts, a community for enthusiasts of classic adventure games as well as a hub for high-quality fan projects. Coded in C++, AfA-Scumm is both very portable and feature rich.
Data migration tool Multi-Plataform for console and desktop mode.
KENTROS XC programming language for business
KENTROS XC is a platform for developing applications Back-End for small and medium businesses that want to incorporate CASE methodologies, and standards of design, development and systems impletación during the software life cycle. KENTROS intended to be a powerful tool that combines the experience and safety of programming languages such as COBOL, C, and at the same time the simplicity and ease of a language such as BASIC and PASCAL. KENTROS OpenSource is a language, try to provide the highest quality of development for medium enterprises and also clean and efficient platform-oriented businesses to the data layer, completely free and available to any organization that requires automating their business processes. Copyright Rolando Fernández Benavidez 2009. GNU General Public License
Metrics calculator tool, with plugin support to easily adapt to any language
z26 -- An Atari 2600 Emulator