# Endless Sky

Explore other star systems. Earn money by trading, carrying passengers, or completing missions. Use your earnings to buy a better ship or to upgrade the weapons and engines on your current one. Blow up pirates. Take sides in a civil war. Or leave human space behind and hope to find some friendly aliens whose culture is more civilized than your own...

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Endless Sky is a sandbox-style space exploration game similar to Elite, Escape Velocity, or Star Control. You start out as the captain of a tiny space ship and can choose what to do from there. The game includes a major plot line and many minor missions, but you can choose whether you want to play through the plot or strike out on your own as a merchant or bounty hunter or explorer.

See the [player's manual](https://github.com/endless-sky/endless-sky/wiki/PlayersManual) for more information, or the [home page](https://endless-sky.github.io/) for screenshots and the occasional blog post.

# Installing the game
Official releases of Endless Sky are available on [Steam](https://store.steampowered.com/app/404410/Endless_Sky/) and as direct downloads from [GitHub](https://github.com/endless-sky/endless-sky/releases). A PPA is available for [Ubuntu](https://launchpad.net/~mzahniser/+archive/ubuntu/endless-sky) and for [Debian](https://packages.debian.org/source/sid/endless-sky). Other package managers may also include the game, though the specific version provided may not be up-to-date.

### System Requirements
Endless Sky has very minimal system requirements, meaning most systems should be able to run the game. The most restrictive requirement is likely that your device must support at least OpenGL 3.

|| Minimum | Recommended |
|---|----:|----:|
|RAM | 350 MB | 750 MB |
|Graphics | OpenGL 3.0 | OpenGL 3.3 |
|Storage Free | 120 MB | 300 MB |

### Building from source
While most development is done on Linux using the [SCons](https://scons.org/) build tool to compile the project, IDE-specific files are provided for [XCode](https://developer.apple.com/xcode/) and [Code::Blocks](http://www.codeblocks.org/) to simplify the installation on Mac OS and Windows. It is possible to use other IDEs or build systems to compile the game, but support is not provided.
For full installation instructions, consult the [Build Instructions](https://github.com/endless-sky/endless-sky/wiki/BuildInstructions) wiki page.

# Contributing
As a free and open source game, Endless Sky is the product of many peoples' work. Contributions of artwork, storylines, and other writing are most in-demand, while there is a loosely defined [development roadmap](https://github.com/endless-sky/endless-sky/wiki/DevelopmentRoadmap). Those who wish to contribute are encouraged to review the [wiki](https://github.com/endless-sky/endless-sky/wiki), and to post in the [discussion forum](http://groups.google.com/group/endless-sky).

# Licensing
Endless Sky is a free, open source game. The [source code](https://github.com/endless-sky/endless-sky/) is available under the GPL v3 license, and all the artwork is either public domain or released under a variety of Creative Commons licenses. (To determine the copyright status of any of the artwork, consult the [copyright file](https://github.com/endless-sky/endless-sky/blob/master/copyright).)