Utactica was created by Martin Conway for the Udacity html5 game competition and is licensed CC BY-NC-SA, some third party supplied assets and code may have their own licenses as noted below and in the source code.
The code to Utactica is available on github.
Howler.js is used as a sound effect maanger and is licensed under the MIT license.
The music tracks on Utactica are from OpenGameArt.Org and are licensed Public Domain.
The background image is by Smattila on Deviant Art and is licensed CC BY-NC.
The end game image is by RonPaul86 downloaded from Wikimedia and is licenses CC BY-SA unported.