Alien Sky is a System Utilities software developed by KraiSoft Entertainment. After our trial and test, the software was found to be official, secure and free. Here is the official description for Alien Sky: Make a raid deep into alien force positions to eliminate the threat for your homeworld. You'll encounter lots of different alien ships, upgrade your weaponry with extra-weapons, blow up enemy barriers and defeat powerful bosses. Lots of special effects, unique tactics for each level, nice music and sound FX, Worldwide Hall of Fame and much more. you can download Alien Sky 1.5.5 free now.