OpenClonk is a multiplayer action/tactics/skill game. It is often referred to as a mixture of The Settlers and Worms. In a simple 2D antfarm-style landscape, the player controls a crew of Clonks, small but robust humanoid beings. The game encourages free play but the normal goal is to either exploit valuable resources from the earth by building a mine or fight each other on an arena-like map.

CMatrix simulates the display from "The Matrix" and is based on the screensaver from the movie's website. It works with terminal settings up to 132x300 and can scroll lines all at the same rate or asynchronously and at a user-defined speed.

Redeal is a deal generator written in Python. It outputs deals satisfying whatever conditions you specify --- deals with a double void, deals with a strong 2♣ opener opposite a yarborough, etc. Using Bo Haglund's double dummy solver, it can even solve the hands it has generated for you.

Glulx is a 32-bit portable virtual machine intended for writing and playing interactive fiction. It was designed by Andrew Plotkin to relieve some of the restrictions in the venerable Z-machine format. This is the reference interpreter, using the Glk API.

FreeRCT is a game that captures the look and feel of the popular games RollerCoaster Tycoon 1 and 2, graphics- and gameplay-wise.

In this game, you play as a manager of a theme park, allowing you to make a park of your dreams. The list of responsibilities includes managing staff, finances, landscaping, and most importantly: rides. Good managers follow the principle of prioritizing the guests' happiness with a well-maintained park. Should they go unwise, a theme park plunge into chaos with vandalizing guests and unsafe rides. Which path will you take?

Unknown Horizons is a 2D realtime strategy simulation with an emphasis on economy and city building. Expand your small settlement to a strong and wealthy colony, collect taxes and supply your inhabitants with valuable goods. Increase your power with a well balanced economy and with strategic trade and diplomacy.

GemRB (Game Engine Made with preRendered Background) is a portable reimplementation of the Infinity Engine that underpinned Baldur's Gate, Icewind Dale and Planescape: Torment. It sports a cleaner design, greater extensibility and several innovations.

GNOME Chess provides a 2D board for playing chess games against human or computer players. It supports loading and saving games in Portable Game Notation. To play against a computer, install a chess engine such as chess or stockfish.

OpenRiichi is a client for playing Japanese Mahjong, and it supports singleplayer and multiplayer, with or without bots. It features all the standard riichi rules, as well as some optional ones. It also supports game logging, so games can be viewed again.

JGRPP is a collection of features and other modifications applied to OpenTTD. It's a separate version of the game which can be installed and played alongside the standard game, not a loadable mod (NewGRF, script, or so on).

This is mainly intended to be used by players who are already familiar with the standard game and how to play it. It is not aimed at beginner/novice players. Some features and settings are there for very experienced players and so may have a steep learning curve.

Crispy Doom is a friendly fork of Chocolate Doom that provides a higher display resolution, removes the static limits of the Doom engine and offers further optional visual, tactical and physical enhancements while remaining entirely config file, savegame, netplay and demo compatible with the original.

Superfluous Returnz is a 2D puzzle game set in a colourful cartoon universe. It takes place in the very quiet French village of Fochougny, an open world where players solve puzzles, find secret codes and talk to the village people to solve the mystery of the apple thief. The game is licensed as Free Software and asks for a financial donation through the game site.

Engine for Caesar III, a city-building real-time strategy game. Julius includes some UI enhancements while preserving the logic (including bugs) of the original game, so that saved games are compatible. This package does not include game data.

The Powder Toy is a free physics sandbox game, which simulates air pressure and velocity, heat, gravity and a countless number of interactions between different substances! The game provides you with various building materials, liquids, gases and electronic components which can be used to construct complex machines, guns, bombs, realistic terrains and almost anything else. You can then mine them and watch cool explosions, add intricate wirings, play with little stickmen or operate your machine.

In this game you pilot a combat space ship to rescue your lost "vi" .swp files avoiding OS defenses. It contains several levels and the difficulty level is configurable on the command line. It can be played with a keyboard or a joystick. It is drawn mostly with lines, and supports various display modes.

Battle Tanks (also known as "btanks") is a funny battle game, where you can choose one of three vehicles and eliminate your enemy using the whole arsenal of weapons. It has original cartoon-like graphics and cool music, it’s fun and dynamic, it has several network modes for deathmatch and cooperative.

In the grand tradition of Marble Madness and Super Monkey Ball, Neverball has you guide a rolling ball through dangerous territory. Balance on narrow bridges, navigate mazes, ride moving platforms, and dodge pushers and shovers to get to the goal. Race against the clock to collect coins to earn extra balls. Also included is Neverputt, which is a 3D miniature golf game.

Colobot: Gold Edition is a real-time strategy game, where you can program your units (bots) in a language called CBOT, which is similar to C++ and Java. Your mission is to find a new planet to live and survive. You can save humanity and get programming skills!

No More Secrets provides a command line tool called "nms" that recreates the famous data decryption effect seen on screen in the 1992 movie "Sneakers".

This command works on piped data. Pipe any ASCII or UTF-8 text to nms, and it will apply the hollywood effect, initially showing encrypted data, then starting a decryption sequence to reveal the original plaintext characters.

Given bridge hands, Lead Solver tallies up how well each card does when led in terms of average tricks taken for the defense (for matchpoints) and how often the contract is set (for team play).

vkquake is a modern engine for id software's Quake 1. It includes support for 64 bit CPUs, custom music playback, a new sound driver, some graphical niceities, and numerous bug-fixes and other improvements.

Gamine is a game designed for young children who are learning to use the mouse and keyboard. The child uses the mouse to draw colored dots and lines on the screen and keyboard to display letters.

TORCS stands for The Open Racing Car Simulator. It can be used as an ordinary car racing game, as an artificial intelligence (AI) racing game, or as a research platform. The game has features such as:

• Input support for a driving wheel, joystick, keyboard or mouse

• More than 30 car models

• 30 tracks

• 50 opponents to race against

• Lighting, smoke, skidmarks and glowing brake disks graphics

• Simple damage model and collisions

• Tire and wheel properties (springs, dampers, stiffness, etc.)

• Aerodynamics (ground effect, spoilers, etc.)

The difficulty level can be configured, impacting how much damage is caused by collisions and the level of traction the car has on the track, which makes the game fun for both novice and experts.

Extreme Tux Racer, or etracer as it is called for short, is a simple OpenGL racing game featuring Tux, the Linux mascot. The goal of the game is to slide down a snow- and ice-covered mountain as quickly as possible, avoiding the trees and rocks that will slow you down.

Collect herrings and other goodies while sliding down the hill, but avoid fish bones.

This game is based on the GPL version of the famous game TuxRacer.