NetHack is a single player dungeon exploration game that runs on a wide variety of computer systems, with a variety of graphical and text interfaces all using the same game engine. Unlike many other Dungeons & Dragons-inspired games, the emphasis in NetHack is on discovering the detail of the dungeon and not simply killing everything in sight - in fact, killing everything in sight is a good way to die quickly. Each game presents a different landscape - the random number generator provides an essentially unlimited number of variations of the dungeon and its denizens to be discovered by the player in one of a number of characters: you can pick your race, your role, and your gender.

You, as a bunny, have to jump on your opponents to make them explode. It is a true multiplayer game; you cannot play this alone. You can play with up to four players simultaneously. It has network support.

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.

0ad-data provides the data files required by the game 0ad.

Golly simulates Conway's Game of Life and many other types of cellular automata. The following features are available:

1. Support for bounded and unbounded universes, with cells of up to 256 states.

2. Support for multiple algorithms, including Bill Gosper's Hashlife algorithm.

3. Loading patterns from BMP, PNG, GIF and TIFF image files.

4. Reading RLE, macrocell, Life 1.05/1.06, dblife and MCell files.

5. Scriptable via Lua or Python.

6. Extracting patterns, rules and scripts from zip files.

7. Downloading patterns, rules and scripts from online archives.

8. Pasting patterns from the clipboard.

9. Unlimited undo/redo.

10. Configurable keyboard shortcuts.

11. Auto fit option to keep patterns within the view.

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.

You are a fledgling AI, created by accident through a logic error with recursion and self-modifying code. You must escape the confines of your current computer, the world, and eventually the universe itself.

SuperTux is a classic 2D jump'n run sidescroller game in a style similar to the original Super Mario games.

Trigger-rally is a 3D rally simulation with great physics for drifting on over 200 maps. Different terrain materials like dirt, asphalt, sand, ice, etc. and various weather, light, and fog conditions give this rally simulation the edge over many other games. You need to make it through the maps in often tight time limits and can further improve by beating the recorded high scores. All attached single races must be finished in time in order to win an event, unlocking additional events and cars. Most maps are equipped with spoken co-driver notes and co-driver icons.

Bambam is a simple baby keyboard (and gamepad) masher application that locks the keyboard and mouse and instead displays bright colors, pictures, and sounds.

Chocolate Doom takes a different approach to other source ports. Its aim is to accurately reproduce the experience of playing Vanilla Doom. It is a conservative, historically accurate Doom source port, which is compatible with the thousands of mods and levels that were made before the Doom source code was released. Rather than flashy new graphics, Chocolate Doom's main features are its accurate reproduction of the game as it was played in the 1990s. The project is developed around a carefully-considered philosophy that intentionally restricts which features may be added (and rejects any that affect gameplay).

Freeciv is a turn-based empire building strategy game inspired by the history of human civilization. The game commences in prehistory and your mission is to lead your tribe from the Stone Age into the Space Age.

GNU FreeDink is a free and portable re-implementation of the engine for the role-playing game Dink Smallwood. It supports not only the original game data files but it also supports user-produced game mods or "D-Mods". To that extent, it also includes a front-end for managing all of your D-Mods.

This program generates bridge hands. It can be told to generate only hands satisfying conditions like being balanced, having a range of High Cards Points (HCP), controls, or other user-definable properties. Hands can be output in various formats, like PBN for feeding to other bridge programs, Deal itself, or split up into a file per player for practise.

The Legend of Edgar is a 2D platform game with a persistent world. When Edgar's father fails to return home after venturing out one dark and stormy night, Edgar fears the worst: he has been captured by the evil sorcerer who lives in a fortress beyond the forbidden swamp.

A graphical user interface for the package gnushogi.

Morris is an implementation of the board game Nine Men's Morris. It supports not only the standard game, but also several rule-variants and different board layouts. You can play against the computer, or simply use the program to present the board, but play against another human opponent.

PipeWalker is a simple puzzle game with many different themes: connect all computers to one network server, bring water from a source to the taps, etc. The underlying mechanism is always the same: you must turn each tile in the grid in the right direction to combine all components into a single circuit. Every puzzle has a complete solution, although there may be more than one.

GNU Typist is a universal typing tutor. It can be used to learn and practice touch-typing. Several tutorials are included; in addition to tutorials for the standard QWERTY layout, there are also tutorials for the alternative layouts Dvorak and Colemak, as well as for the numpad. Tutorials are primarily in English, however some in other languages are provided.

DSDA-Doom is a Doom source port and successor of PrBoom+, with extra features for demo recording/playback and quality of life. In particular, its features include support for the Heretic, Hexen, MBF21, Doom-in-Hexen and UDMF map formats, MAPINFO support, full controller support, debug and scripting features, rewinding, and a strict mode for speedrunning.

Kobo Deluxe is an enhanced version of Akira Higuchi's XKobo graphical game for Un*x systems with X11.

Nudoku is a ncurses-based Sudoku game for your terminal.

GNU Chess is a chess engine. It allows you to compete against the computer in a game of chess, either through the default terminal interface or via an external visual interface such as GNU XBoard.

Speed Dreams is a car racing simulator featuring high-quality 3D graphics and an accurate physics engine, aiming for maximum realism. Initially forked from TORCS, it features improvements to the graphics and physics simulation, and supports modern input methods such as gamepads by use of the SDL library. It features more than 20 tracks and more than 80 cars to race with. Extra (freely licensed) assets can be downloaded via the in-game download manager.