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Level Shmup is an old-school arcade style shoot-em-up game in the style of classics such as R-Type and Gradius. Interesting features of this game include the ability to fire in eight directions, and an adaptive difficulty curve. The game automatically gets easier or harder based on your performance, with bonuses awarded for completion on the highest difficulties.

License: free

Additional System Requirements: SDL

An advanced game of pong with lots of options. A ball bounces around the screen and you hit it with paddles. If you miss, your opponent scores, if your opponent misses, you score.

License: free

The game takes place in a Zelda-like scenario where the hero Izza must find 6 crystals, distributed across 6 castles, in order to gain the Supreme Sword which enables him to destroy the villain Azzi and thus bring peace back into the world.

The gameplay is very Zelda-like, with many puzzles, items, swords and places to uncover.

License: free

LGeneral is a turn-based strategy engine heavily inspired by Panzer General. You play single scenarios or whole campaigns turn by turn against a human player or the AI. Things like entrenchment, rugged defence, defensive fire, ambushs, unit supplies, weather influence, reinforcements, etc contribute to the strategic depth of the game.

License: free

Additional System Requirements:

libGLI is a multiplatform library for creating 3D user interfaces, based on OpenGL. With the help of this library, programmers can add in their own graphic application elements for the user interface and connect interface objects to their own programs with callbacks. In other words, GLI sits between the user and an OpenGL application.

GLI is built first of all to relieve the programmers who build graphic applications based on OpenGL and don't want spend half of the time for programming their own user interface. In particular, libGLI will be useful for small and average projects, where the majority of time is spent not on the user interface, but on the REAL purpose of the program. But that's not to say that libGLI is intended for small projects only. libGLI has sufficient features for building both simple and complex interfaces.

The main feature of libGLI is that it is a general interface, i.e. programmers can create interface objects of various form, color, size, etc.

libGLI is a multiplatform library written in C++. All objects are based on classes defined in the library. The programmer can inherit from these classes to build new objects.

License: free

Additional System Requirements: X11, an implementation of OpenGL

libmaterial is a library that provides a system for loading, editing, and using textures with OpenGL. This can be used in games, graphics editors, etc.

Also included are some sample applications and an interactive material editor.

License: free

Additional System Requirements:

• OpenGL
• Imlib
• GNOME (optional)