Free fun little game software for linux

Infon Battle Arena is a networked multiplayer real-time programming game featuring little creatures fighting for food. You upload your Creature Code (written in Lua) to a game server using a telnet Interface.

The game server then runs your code. The graphical client can be used to watch running games or replay recorded games.

Keen little rabbit ears is a simple ear training program for Linux and Windows. It is free of charge. You can exercise the recogniton of intervalls, chords, scales and chord progressions.
Keen little rabbit ears requires the installation of Perl (Version 5), Perl/Tk, Perl::MIDI and an extermal MIDI player, like timidity (Verion 0.2i). Keen little rabbit ears is written in perl, uses Perl/Tk for the user interface, Perl::MIDI to write MIDI files and timidity to play MIDI files.
This is an early release, which means that there is a number of features which are not implemented. But keen little rabbit ears works pretty fine on my Pentium 90 using Suse Linux (Version 6.1) and under Window 95 too.
I strongly recommend everyone to read a good book on this. There are several ways to train. In general you do it like this. In the first level only select 2 or 3 items you already know or which are
the most common. In the next level you proceed and add the next 2 common items.
Below is are two lists, which can be used as guideline. But it is usually better to ask your teacher which exercises should you train.
Enhancements:
- Quiz mode
- advanced root note selection
- extension to playing direction (both)
- highlighting of selected instrument / root note
- 440 Hz (sing an "a" test)
- bug fix (pitch drill)

Little Wizard is a development environment for children. Little Wizard can be programmed without using keyboard, just by using drag and drop.
Even children in primary school can understand how it works. Little Wizard project uses GTK+ and libXML.
Enhancements:
- This release fixes errors found in the parser and other minor problems.

This is an adapted, improved version of the popular javacave game, written in QtRuby.

Installation:

download
chmod +x snake(gl).rb
run it.

A Jacks Game is a real-time game that runs in a Web browser using the AJAX (Asynchronous JavaScript and XML) technology.

Multiple users can login in A Jacks Game to explore a common map and earn a common currency as their score.

A Jacks Game is free software released under GNU/GPL Open Source License.

Epiphany project is a multiplatform clone of the game Boulderdash.

It is written entirely in C++, using Clanlib as its graphic library.

The player must collect all valuable minerals scattered in levels, while avoiding being hit by a falling boulder or a bomb.

Rubygame is a combination extension and library for the Ruby language, with the goal of making it easy and fun to create games in Ruby.

Rubygame has SDL as a backend, and is styled after the very nice pygame library for the Python language.

Rubygame is free softwarereleased under the GNU Lesser General Public License.

Kslide project is one of those little games very simple but time consuming ! We have a picture which is split in more or less little squares. Then we put them randomly on the game area. Now, your job is to move the squares to unscramble all of them !