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This is the follow-up to the old Wolfenstein 3D game, and it does not disappoint. Gorgeous graphics, wonderful sound, and awesome gameplay. Killing Nazis is fun!!! When you've finished the single player missions, go online and check out the rich multiplayer options.

You are B.J. Blazkowicz, [You are B.J. Blazkowicz, a highly decorated Army Ranger recruited into the Office of Secret Actions (OSA) tasked with escaping and then returning to Castle Wolfenstein in an attempt to thwart Heinrich Himmler's occult and genetic experiments. Himmler believes himself to be a reincarnation of a 10th century dark prince, Henry the Fowler, also known as Heinrich. Through genetic engineering and the harnessing of occult powers, Himmler hopes to raise an unstoppable army to level the Allies once and for all.

There are playable single- and multi-player demos at the download site.

License: commercial (~ US$49.95)

Yet Another Reversi/Othello Clone implemented in C++ and SDL with a nice skinnable look.

License: free

Additional System Requirements:
SDL
SDL_image

An Othello/reversi board game in Gnome environment. The goad is to have a very strong AI and useful as a learning tool for those who want to master the game.

License: free

Additional System Requirements:

• Gnome 2 libs
• Pthreads

Ri-li is a arcade game under GPL. You drive a toy wood engine in many levels and you must collect all the coaches for win. Versions for 'Linux' (sources and RPM), 'Mac OsX', 'Windows'. 'AmigaOS4'
Full-featured, 18 languages: Arabic, Breton, Chinese, Dutch, English, Esperanto, French, German, Hungarian, Italian, Japanese, Polish, Portuguese, Russian, Slovak, Spanish, Swedish, Turkish. Colorful animated wood engine, 50 levels and 3 beautiful music tracks and many sound effects.

License: free

Additional System Requirements: Linux/Unix version need SDL and SDL_mixer library.

Righteous is a puzzle game inspired by a popular handheld console game but with many enhancements planned. The goal of the game is to build up combos by combining blocks of similar colors. These combine into squares which are cleared away by a moving time marker. If the blocks are unable to land within the game grid then the game is over.

License: free

Additional System Requirements: SDL
SDL_mixer
SDL_image

Rigs of Rods is a simulation game based on a custom advanced soft body physics engine.
In a vast open world, you can drive trucks, control cranes and fly airplanes.
The chassis and wheels deform according to the stress they bear, and crashes are interesting to see too!
The linux version is still a release candidate under compatibility testing.

License: free

Additional System Requirements: Requires a system compiled with GCC 4.