Plot: Eschalon: Book I is an isometric turn-based role-playing video game by Basilisk Games. In the style of classic role-playing video games, it features a large and openly explorable game world, comprehensive management of character stats and skills, and a non-linear storyline. Wikipedia
Plot: AssaultCube, formerly ActionCube, is an open source first-person shooter video game, based on the Cube engine. It takes place in realistic environments, with fast, arcade gameplay. Although the main focus of AssaultCube is multiplayer online gaming, a single-player mode consists of computer-controlled...
Plot: The Battle for Wesnoth is a turn-based strategy video game with a fantasy setting, designed by Australian developer David White and first released in June 2003. In Wesnoth, the player attempts to build a powerful army by controlling villages and defeating enemies for experience. Wikipedia
Plot: SuperTuxKart is a free and open-source kart racing game, distributed under the terms of the GNU General Public License, version 3. It features mascots of various open-source projects. SuperTuxKart is cross-platform, running on Linux, macOS, Windows, and Android systems. Wikipedia
Plot: SuperTux is a free and open-source two-dimensional platform video game published under the GNU General Public License. The game was inspired by Nintendo's Super Mario Bros. series; instead of Mario, the hero in the game is Tux, the official mascot of the Linux kernel. Wikipedia
Plot: Warzone 2100 is an open-source real-time strategy and real-time tactics hybrid computer game, originally developed by Pumpkin Studios and published by Eidos Interactive. Wikipedia
Plot: 0 A.D. is a real-time strategy video game under development by Wildfire Games. It is a historical war and economy game focusing on the years between 500 BCE and 1 BCE, with the years between 1 CE and 500 CE planned to be developed in the future. Wikipedia
Plot: Tropico 5 is a construction and management simulation video game developed by Haemimont Games. It was released for Microsoft Windows in May 2014, with versions for Linux, OS X and Xbox 360 released later in 2014 as well as versions for PlayStation 4 and Xbox One released in April 2015 and May 2016...
Plot: OpenTTD is a business simulation game in which players try to earn money by transporting passengers and freight via road, rail, water and air. It is an open-source remake and expansion of the 1994 Chris Sawyer video game Transport Tycoon Deluxe. Wikipedia
Plot: BioShock Infinite is a first-person shooter video game developed by Irrational Games and published by 2K Games. It was released worldwide for the Microsoft Windows, PlayStation 3, Xbox 360, and OS X platforms in 2013, and a Linux port was released in 2015. Wikipedia
Plot: Sid Meier's Civilization V is a 4X video game in the Civilization series developed by Firaxis Games. The game was released on Microsoft Windows in September 2010, on OS X on November 23, 2010, and on Linux on June 10, 2014. Wikipedia