Galacticraft Mod 1.6.4

Galacticraft is a mod that lets you travel to new planets with your own spaceship.

Create and customize your very own spaceship (customization coming soon)!
Explore new planets and moons!
SMP Support – Explore with your friends!
Multiple language support!
New mobs!
Lots of new items and blocks!
Dungeons (coming soon)!
API to allow modders to add more content, including whole new solar systems and galaxies!

Download: http://www.5minecraft.net/galacticraft-mod/