The goal of this logic game is to open all cards in a 6x6 grid, using a number of hints as to their relative position. The game idea is attributed to Albert Einstein.

Pilot your ship inside a planet to find and rescue the colonists trapped inside the Zenith Colony.

The Irrlicht Engine is a high performance realtime 3D engine written in C++. Features include an OpenGL renderer, extensible materials, scene graph management, character animation, particle and other special effects, support for common mesh file formats, and collision detection.

The original Colossal Cave Adventure from 1976 was the origin of all text adventures, dungeon-crawl (computer) games, and computer-hosted roleplaying games. This is a forward port of the last version released by Crowther & Woods, its original authors, in 1995. It has been known as ``adventure 2.5'' and ``430-point adventure''.

This package contains the data files required for MegaGlest.

Pingus is a free Lemmings-like puzzle game in which the player takes command of a bunch of small animals and has to guide them through levels. Since the animals walk on their own, the player can only influence them by giving them commands, like build a bridge, dig a hole, or redirect all animals in the other direction. Multiple such commands are necessary to reach the level's exit. The game is presented in a 2D side view.

Knights is a multiplayer game involving several knights who must run around a dungeon and complete various quests. Each game revolves around a quest – for example, you might have to find some items and carry them back to your starting point. This may sound easy, but as there are only enough items in the dungeon for one player to win, you may end up having to kill your opponents to get their stuff! Other quests involve escaping from the dungeon, fighting a duel to the death against the enemy knights, or destroying an ancient book using a special wand.

This package provides a work-in-progress game where you control a Viking and your objective is to loot all of the occupied hexagonal tiles in the map.

Cataclysm: Dark Days Ahead (or "DDA" for short) is a roguelike set in a post-apocalyptic world. Struggle to survive in a harsh, persistent, procedurally generated world. Scavenge the remnants of a dead civilization for food, equipment, or, if you are lucky, a vehicle with a full tank of gas to get you out of Dodge. Fight to defeat or escape from a wide variety of powerful monstrosities, from zombies to giant insects to killer robots and things far stranger and deadlier, and against the others like yourself, that want what you have.

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.

Quadrapassel comes from the classic falling-block game, Tetris. The goal of the game is to create complete horizontal lines of blocks, which will disappear. The blocks come in seven different shapes made from four blocks each: one straight, two L-shaped, one square, and two S-shaped. The blocks fall from the top center of the screen in a random order. You rotate the blocks and move them across the screen to drop them in complete lines. You score by dropping blocks fast and completing lines. As your score gets higher, you level up and the blocks fall faster.

0 A.D. is a real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of twelve ancient civilizations, each depicted at their peak of economic growth and military prowess.

0ad needs a window manager that supports 'Extended Window Manager Hints'.

RogueBox Adventures is a graphical roguelike with strong influences from sandbox games like Minecraft or Terraria. The main idea of RogueBox Adventures is to offer the player a kind of roguelike toy-world. This world can be explored and changed freely.

Far below the surface of the planet is a place of limitless power. Those that seek to control such a utopia will soon bring an end to themselves. Seeking an end to the troubles that plague him, PSI user Merit journeys into the hallowed Orcus Dome in search of answers.

Meritous is a action-adventure game with simple controls but a challenge to find a balance of power versus recovery time during real-time battles. Set in a procedurally generated world, the player can explore thousands of rooms in search of powerful artifacts, tools to help them, and to eventually free the Orcus Dome from evil.

Pioneers is an emulation of the board game The Settlers of Catan. It can be played on a local network, on the internet, and with AI players.

Blobwars: Metal Blob Solid is a 2D platform game, the first in the Blobwars series. You take on the role of a fearless Blob agent. Your mission is to infiltrate various enemy bases and rescue as many MIAs as possible, while battling many vicious aliens.

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.

Alien Blaster is an action-loaded 2D arcade shooter game. Your mission in the game is simple: stop the invasion of the aliens by blasting them. Simultaneous two-player mode is available.

Yamagi Quake II is an enhanced client for id Software's Quake II. The main focus is an unchanged single player experience like back in 1997, thus the gameplay and the graphics are unaltered. However the user may use one of the unofficial retexturing packs. In comparison with the official client, over 1000 bugs were fixed and an extensive code audit done, making Yamagi Quake II one of the most solid Quake II implementations available.

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.

ChessX is a chess database. With ChessX you can operate on your collection of chess games in many ways: browse, edit, add, organize, analyze, etc. You can also play games on FICS or against an engine.

C-Dogs SDL is a classic overhead run-and-gun game, supporting up to 4 players in co-op and deathmatch modes. Customize your player, choose from many weapons, and blast, slide and slash your way through over 100 user-created campaigns.

L'Abbaye des Morts is a 2D platform game set in 13th century France. The Cathars, who preach about good Christian beliefs, were being expelled by the Catholic Church out of the Languedoc region in France. One of them, called Jean Raymond, found an old church in which to hide, not knowing that beneath its ruins lay buried an ancient evil.

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