multiplayer OpenGL puzzle game like "Tetris Attack"

crack-attack

multiplayer OpenGL puzzle game like "Tetris Attack"

Crack Attack is an OpenGL puzzle game similar to the Super Nintendo game "Tetris Attack". Slowly, your stack of colored blocks grows from the bottom, and you've got to make sure it never reaches the top. If it does, you lose. To eliminate blocks from the stack, line up at least three of one color, horizontally or vertically. Once you do, those blocks disappear, and put off slightly your inevitable demise.
dungeon crawl game - text-based interface

nethack-console

dungeon crawl game - text-based interface

NetHack is a wonderfully silly, yet quite addictive, Dungeons & Dragons-style adventure game. You play a character from one of many classes (such as wizard, ranger, or tourist), fighting your way down to retrieve the Amulet of Yendor (try saying THAT one backwards!) for your god. On the way, you might encounter a quantum mechanic or two, or perhaps King Arthur, or - if you're REALLY lucky - the Ravenous Bugblatter Beast of Traal.
toy train simulation game

ri-li

toy train simulation game

Ri-li is a game in which you drive a wooden toy steam locomotive across many levels and collect all the coaches to win.
penguin-themed solitaire games

ace-of-penguins

penguin-themed solitaire games

The Ace of Penguins is a set of solitaire games inspired by the ones available for MS Windows, but with a number of enhancements.
Action game in four spatial dimensions

adanaxisgpl

Action game in four spatial dimensions

Adanaxis is a fast-moving first person shooter set in deep space, where the fundamentals of space itself are changed. By adding another dimension to space this game provides an environment with movement in four directions and six planes of rotation. Initially the game explains the 4D control system via a graphical sequence, before moving on to 30 levels of gameplay with numerous enemy, ally, weapon and mission types. Features include simulated 4D texturing, mouse and joystick control, and original music. Screenshots, movies and further information are available at http://www.mushware.com/.
turn-based strategy game

asc

turn-based strategy game

Advanced Strategic Command is a free strategy game in the tradition of Battle Isle 2/3. The game is turn-based and can be played against human or computer.