Free solution selling software for linux

DISLIN is a high-level plotting library for displaying data as curves, polar plots, bar graphs, pie charts, 3D-color plots, surfaces, contours and maps.
DISLIN is intended to be a powerful and easy to use software package for scientists and programmers. There are only a few graphics routines with a short parameter list needed to display the desired graphical output. A large variety of parameter setting routines can then be called to create individually customized graphics.
The software is available for several C, Fortran 77 and Fortran 90/95 compilers on the operating systems UNIX, Linux, FreeBSD, OpenVMS, Windows and MS-DOS. DISLIN programs are very system-independent, they can be ported from one operating system to another without any changes.
For some operating systems, the programming languages textExtern Python, textExtern Perl and textExtern Java are also supported by DISLIN. The DISLIN interpreter DISGCL is availble for all supported operating systems. See a complete list of the supported operating systems and compilers.
A short description of the DISLIN features is given in Overview. DISLIN manuals can be downloaded as compressed tar files in PostScript, PDF and HTML format. An online manual is also available as an alphabetical list of all DISLIN routines.
DISLIN is free for non-commercial use. Licenses for selling programs linked with
DISLIN or for using DISLIN in an environment related to business are available from this site.
The DISLIN software and manuals can be downloaded via HTML and from FTP servers.
Enhancements:
- Thread-safe C libraries, additional character features, hardware symbols, an unlimited number of widgets, and bugfixes.

Lost Labyrinth is a so-called "roguelike" RPG playing computer game.
Main features:
- relatively short gameplay (about 10-20 minutes)
- very high replayability; nearly everything in the game is randomly generated
- Sketelona lot of options during the character generation; each character type requires another strategy to survive
- game focus on exploration; killing monsters does not give an experience bonus (but makes fun nonetheless)
- Multiplayer games on the same machine (up to 3 players with keyboard, mouse and joystick)
- "Zelda"-like graphics, sound and animation; smooth scrolling of game screen
- FreeWare
Enhancements:
- You can pick up items with the mouse (the pointer changes when you can interact with something).
- You can scroll spells with the mouse (up/down buttons).
- A text entry bug (could enter only one character since the new compiler) has been fixed.
- German special letters and spells have been fixed.
- An issue where the trader left you one field to the right (in the wall sometimes) has been fixed.
- The borders of the credits and high score screens have been fixed.
- The language of the help screen has been fixed.
- A merchant will wait a while before buying/selling is possible.

Shoot is a solution to backup files on a single Unix-like machine and transport the files over the Internet through a secure channel to another Unix-like machine.
Enhancements:
- This release adds a new subsystem, sharing of functions between server and client, and many bugfixes and polishing.

Gecko Multimedia System is a complete media solution, able to play almost all media types and supports scheduled tv-recording from online tv-guides.

It is intended to replace your VCR, DVD, MP3- and CD-player into one single software-unit. It is mainly for use in Linux-systems (well, its the only system Ive tried it on).

Please note that Gecko requires VRD to be able to record television. VRD is not yet 100% functional.