Going to make a Pull Request? Make sure you read the CONTRIBUTING.md first!
AEIOUstation is a fork of the Virgo code branch, that is Polaris fork branch, which itself a fork of the Baystation12 code branch, for the game Space Station 13.
The code for AEIOUstation is licensed under the GNU Affero General Public License version 3, which can be found in full in LICENSE-AGPL3.txt.
Code with a git authorship date prior to 1420675200 +0000 (2015/01/08 00:00) are licensed under the GNU General Public License version 3, which can be found in full in LICENSE-GPL3.txt.
All code whose authorship dates are not prior to 1420675200 +0000 is assumed to be licensed under AGPL v3, if you wish to license under GPL v3 please make this clear in the commit message and any added files.
If you wish to develop and host this codebase in a closed source manner you may use all code prior to 1420675200 +0000, which is licensed under GPL v3. The major change here is that if you host a server using any code licensed under AGPLv3 you are required to provide full source code for your servers users as well including addons and modifications you have made.
See here for more information.
All assets including icons and sound are under a CC BY-SA 3.0 license unless otherwise indicated.