Blueshift is a free software synthesizer preset pack for Ob Xd, made by Ghostwave Audio.
Blueshift is a signature free bank for OB-Xd by Ghostwave.
Featuring 64 high-quality sounds, it is designed for all types of electronic music and contains a wide variety of presets: basses, pads, plucks, leads and many more.
Head over to the Ghostwave Audio website to download it.
http://ghostwaveaudio.com