A multi-player networked clone of the classical Bubble Bobble board game.

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Developer: bub-n-bros
License: MIT/X Consortium License
Operating System: Cocoa (MacOS X), Handheld/Mobile/PDA, Win32 (MS Windows), X Window System (X11), GTK+, SDL, Web-based

Variation of the Concentration game (also known as Memory) written in JavaFX.

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Developer: kryshen.net
License: Freeware
Operating System: All

Multi-player tron game for 1-4 players.

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Developer: kryshen.net
License: Freeware
Operating System: All

Two-player game.

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Developer: kryshen.net
License: Freeware
Operating System: All

Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects.

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Developer: celestia
License: GNU General Public License (GPL)
Operating System: 32-bit MS Windows (95/98), All 32-bit MS Windows (95/98/NT/2000/XP), All POSIX (Linux/BSD/UNIX-like OSes), Linux, OS X

Space Invaders OpenGL is a 2D/3D clone of Space Invaders developed with the OpenGL API.

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Developer: spaceinvadersgl
License: GNU General Public License (GPL)
Operating System: All 32-bit MS Windows (95/98/NT/2000/XP)

Vega Strike is a 3d OpenGL Action Space Sim for Win/Lin/Mac allowing players to trade and bounty hunt in a vast universe.

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Developer: vegastrike
License: GNU General Public License (GPL)
Operating System: 32-bit MS Windows (95/98), All 32-bit MS Windows (95/98/NT/2000/XP), All POSIX (Linux/BSD/UNIX-like OSes), OS Independent (Written in an interpreted language), Linux, OS X