"Metal+Stone Textures"

by Spiney

License: CC-BY-SA 3.0

http://opengameart.org/content/metalstone-textures

"Nihil Ace Spaceship Building Pack Expansion"

by Buch (http://opengameart.org/users/buch)

License: CC-BY 3.0

http://opengameart.org/content/nihil-ace-spaceship-building-pack-expansion