Endgame: Singularity is a 2005 free and open source science fiction strategy/simulation game for Linux, Microsoft Windows, and Mac OS X. Gameplay Endgame: Singularity casts the player as a newly created artificial intelligence which becomes self-aware and attempts to survive while avoiding detection by the public and the authorities. The goal is to transcend the physical reality, achieve technological singularity (hence the game's name) and become immortal. The game has two resources, "CPU" and "money". CPU is used to perform jobs that allow the AI to grow; money is used to buy more CPU cycles. Development and release Endgame: Singularity was originally written in August 2005 by Evil Mr Henry Software (EMH Software), using the Python programming language with the Pygame library. It was submitted to the first PyWeek challenge, a competition to create a complete Python game within a week. The source code is available on GitHub under the GNU GPL-2.0-or-later, but other game assets are licensed under a Creative Commons license and other licenses. The game was released for Microsoft Windows, Mac OS X, and Linux. Packages are available for several Linux distributions, including Ubuntu, Linux Mint, Arch Linux and Debian. Ebuilds are also available for Gentoo. Third-party adaptations of the game were released for Android and iPhone under the name Endgame: Singularity II. Reception Endgame: Singularity received favorable reviews from gaming websites JayIsGames and Play This Thing. See also List of open source games Universal Paperclips References External links endgame-singularity project repository on Google Code fork/continuation repository on GitHub Libregame Wiki Open-source video games Strategy video games Cross-platform free software Creative Commons-licensed video games Freeware games