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).

Lugaru is a third-person action game. The main character, Turner, is an anthropomorphic rebel bunny rabbit with impressive combat skills. In his quest to find those responsible for slaughtering his village, he uncovers a far-reaching conspiracy involving the corrupt leaders of the rabbit republic and the starving wolves from a nearby den. Turner takes it upon himself to fight against their plot and save his fellow rabbits from slavery.

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.

Driver and configuration tool for game controllers such as the Steam Controller, Steam Deck, and Dual Shock 4. Install the included udev rules to solve permissions issues.

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.

Frotz is an interpreter for Infocom games and other Z-machine games in the text adventure/interactive fiction genre. dfrotz is the dumb interface version. You get no screen control; everything is just printed to the terminal line by line. The terminal handles all the scrolling. Maybe you'd like to experience what it's like to play Adventure on a teletype. A much cooler use for compiling Frotz with the dumb interface is that it can be wrapped in CGI scripting, PHP, and the like to allow people to play games on webpages. It can also be made into a chat bot.

HyperRogue is a game in which the player collects treasures and fights monsters -- rogue-like but for the fact that it is played on the hyperbolic plane and not in euclidean space.

In HyperRogue, the player can move through different parts of the world, which are home to particular creatures and may be subject to their own rules of "physics".

While the game can use ASCII characters to display the the classical rogue symbols, it still needs graphics to render the non-euclidean world.

This is a small puzzle game made for the 2024 Spring Lisp Game Jam. The objective is to reach the goal by assigning rules to colors.

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.

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''.

Fifechan is a lightweight cross platform GUI library written in C++ specifically designed for games. It has a built in set of extendable GUI Widgets, and allows users to create more.

Frotz is an interpreter for Infocom games and other Z-machine games in the text adventure/interactive fiction genre. This version of Frotz using SDL fully supports all these versions of the Z-Machine including the graphical version 6. Graphics and sound are created through the use of the SDL libraries. AIFF sound effects and music in MOD and OGG formats are supported when packaged in Blorb container files or optionally from individual files.

This is an open-source port of the Serious Engine from Serious Sam: The First Encounter and Serious Sam: The Second Encounter. This variant includes a Vulkan renderer. To run, you must put your official game data, Levels and Help in ~/.local/share/Serious-Engine/serioussam,serioussamse/gamedata/.

The player controls a character (one of three: Good, Bad, and Dead), dodges the missiles (lots of it cover the screen, but the character's hitbox is very small), and shoot at the adversaries that keep appear on the screen.

Naev is a 2d action/rpg space game that combines elements from the action, RPG and simulation genres. You pilot a spaceship from a top-down perspective, and are more or less free to do what you want. As the genre name implies, you’re able to trade and engage in combat at will. Beyond that, there’s an ever-growing number of story-line missions, equipment, and ships; even the galaxy itself grows larger with each release. For the literacy-inclined, there are large amounts of lore accompanying everything from planets to equipment.

Curse of War is a fast-paced action strategy game originally implemented using ncurses user interface. An SDL graphical version is also available.

Open Surge is a 2D retro side-scrolling platformer inspired by the Sonic games. The player runs at high speeds through each level while collecting items and avoiding obstacles. The game includes a built-in level editor.

High performance animated desktop background setter for X11 that won't set your CPU on fire, drain your laptop battery, or lower video game FPS.

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.

Liquid War 6 is a unique multiplayer war game. Your army is a blob of liquid and you have to try and eat your opponents. Rules are very simple yet original, they have been invented by Thomas Colcombet.

Simon Tatham's Portable Puzzle Collection contains a number of popular puzzle games for one player.

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 contains a dedicated server for The Battle for Wesnoth.

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.