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.

The sdl-jstest and sdl2-jstest commands can list the available joystick controllers as found by the SDL or SDL2 libraries, respectively. It can show the available axes, buttons, hats and balls of a chosen controller, and can display the controller actions in real time in a visual fashion.

This is a clone of the classic game BurgerTime. In it, you play the part of a chef who must create burgers by stepping repeatedly on the ingredients until they fall into place. And to make things more complicated, you also must avoid evil animate food items while performing this task, with nothing but your trusty pepper shaker to protect you.

Teeworlds is an online multiplayer game. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps!

Mr. Rescue is an arcade styled 2d action game centered around evacuating civilians from burning buildings. The game features fast-paced fire extinguishing action, intense boss battles, a catchy soundtrack, and lots of throwing people around in pseudo-randomly generated buildings.

Odamex is a modification of the Doom engine that allows players to easily join servers dedicated to playing Doom online.

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.

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.

In FreeGish you control Gish, a ball of tar who lives happily with his girlfriend Brea, until one day a mysterious dark creature emerges from a sewer hole and pulls her below ground.

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.

Trackballs is a simple game similar to the classic Amiga game Marble Madness. By steering a marble ball through a labyrinth filled with vicious hammers, pools of acid and other obstacles the player collects points. When the ball reaches the destination it continues at the next, more difficult level - unless the time runs out.

Learn programming, playing with ants and spider webs ;-) Your robot ant can be programmed in many languages: OCaml, Python, C, C++, Java, Ruby, Lua, JavaScript, Pascal, Perl, Scheme, Vala, Prolog. Experienced programmers may also add their own favorite language.

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.

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/.

Schiffbruch is a mix of building, strategy and adventure and gets played with a two-dimensional view. The game deals with the consequences of a ship wreckage. You're stranded on a desert island and have to survive. In order to do so you need to explore the island, find food, build a shelter and try to get attention, so you get found.

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.

This package provides a userspace daemon for the Nintendo Joy-Con controllers.

moonfish is a toy UCI chess engine written in C. It has TUI/CLI tools for using any UCI engine and also to connect UCI engines to Lichess and IRC.

ReTux is an action platformer loosely inspired by the Mario games, utilizing the art assets from the SuperTux project.

Libmanette is a small GObject library giving you simple access to game controllers. It supports the de-facto standard gamepads as defined by the W3C standard Gamepad specification or as implemented by the SDL GameController.

FreeOrion is a turn-based space empire and galactic conquest (4X) computer game being designed and built by the FreeOrion project. Control an empire with the goal of exploring the galaxy, expanding your territory, exploiting the resources, and exterminating rival alien empires. FreeOrion is inspired by the tradition of the Master of Orion games, but is not a clone or remake of that series or any other game.

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

The asciiquarium package renders a fullscreen animation of an aquarium with various fish in the terminal, which can make for a nice screensaver.

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.