Free if possible software for linux

JRicochet is a simple puzzle game. It consists of a 10x10 grid, which contains 5 invisible blocks. From each side a player can shoot probes into the grid. Goal is to find the blocks by the pattern of the ricochetting probes in as few shots as possible.

Winpdb project is an advanced python debugger, with support for smart breakpoints, multiple threads, namespace modification, embedded debugging, encrypted communication and speed of up to 20 times that of pdb.
Well, actually rpdb2 is the advanced debugger and Winpdb is its GUI, and I am their author, and this is their home page. So, whenever I refer in this website to Winpdb, whatever I write about it applies to rpdb2 too, except for GUI stuff of course. They even use the same command line flags.
Main features:
- GPL License
- Compatible with CPython 2.3, 2.4
- Platform independent, and tested on Windows XP, Linux Fedora-Core 4, and Mac OSX Tiger
- User Interfaces: rpdb2 is console based, while winpdb requires wxPython 2.6
Enhancements:
New Features:
- Added support for os.fork().
- Automatically track threads created directly with thread.start_new_thread().
- When modifying a value in the name-space viewer, the current value is given if possible.
- On Windows, Winpdb installs a start group folder to improve usability.
Security:
- Session password is removed from data structures that are sent from the server to the client.
Interface Changes:
- Removed CSimpleSessionManager.script_about_to_terminate_callback().
- Added CSimpleSessionManager.script_paused().
- Added CSessionManager.set_fork_mode().
- Added CSessionManager.get_fork_mode().
- Added CEventPsycoWarning.
- Added CEventForkMode.
- Added NotPythonSource exception.
Other Changes:
- Bug fix of bug 1744719 - "Address already in use error in Solaris"
- Changed the semantics of the name-space filter to filter out __methods__ from objects and classes.
- Added a warning when the psyco module is detected.
- The debugger now starts the script inside the default shell (e.g. bash).
- Improved name-space performance with large data structures in response to forum post: "More Torture Testing" - http://sourceforge.net/forum/forum.php?thread_id=1786226&forum_id=485189
- Fixed regression where script name-space was released too early and was not available in analyze mode of unhandled exceptions.
- Fixed FindFile() to expand username in path.
- Fixed debugger not to pause on breakpoints after detach.
- Fixed debugger to handle links correctly.
- Miscellaneous bug fixes.

Holoracer is intended to be the fastest racing game possible. HoloRacer is based on the game Trailblazer.

It is designed to be fast and furious with psychadelic graphics with incredible speed. Also includes network play.

Keys - Arrow keys for left and right.

Instructions:

Light squares speed you up, dark ones slow you down. Get the fastest time!

The tecla library provides UNIX and LINUX programs with interactive command line editing facilities, similar to those of the unix tcsh shell. In addition to simple command-line editing, it supports recall of previously entered command lines, TAB completion of file names, and
in-line wild-card expansion of filenames.

The internal functions which perform file-name completion and wild-card expansion are also available externally for optional use by programs, along with a module for tab-completion and lookup of filenames in a list of directories.

Note that special care has been taken to allow the use of this library in threaded programs. The option to enable this is discussed in the Makefile, and specific discussions of thread safety are presented in the included man pages.

Installation:

To compile and optionally install the library, it is first necessary to create a makefile for your system, by typing:

./configure

The Makefile that this generates is designed to install the files of the library in subdirectories of /usr/local/. If you would prefer to install them under a different directory, you can type:

./configure --prefix /wherever

Where you would replace /wherever with your chosen directory. Other command-line options are available, and can be listed by typing:

./configure --help

Having run the configure script, you are then ready to make the library. To do this, just type:

make

What make does depends on whether the configure script knows about your system. If the configure script doesnt know anything specific about your system, it will arrange for make to produce the static tecla library, called libtecla.a, and if possible, the reentrant
version of this called libtecla_r.a. If it does know about your system, it will also create shared libraries if possible.

If you are on a system that isnt known, and you would like shared libraries to be compiled, please read the file called PORTING to see how this can
be achieved.

To install the library, its include file and it manual pages, type:

make install

Note that this will also compile the library if you havent already done so.

Having compiled the library, if you wish, you can test it by running the demo programs. After building the library, you should find two programs, called demo and demo2, in the current directory.

The first of the demos programs reads input lines from the user, and writes what was typed back to the screen. While typing a line of input, you can experiment with line editing, tab completion, history recall etc.

For details about these line editing features, see the man page gl_get_line(3). If you havent installed this yet, you can see it anyway by typing:

nroff -man man3/gl_get_line.3 | more

The second demo program, called demo2, demonstrates command-completion
with the UNIX PATH. If you type in a partial command name, and press TAB, the command name will be completed if possible, and possible completions will be listed if it is ambiguous.

When you then enter the line, the demo program then prints out the full pathname of the command that you typed. If you type anything after the command name, filename completion with the tab key reverts to its default behavior of completing filenames in the current directory.