We frequently receive requests regarding acquiring the following plugins. Some people may not be aware, these are not Image-Line plugins. Nexus 2, Sylenth 1, Kontakt, Massive and Serum are VST plugins from 3rd party developers. These plugins can be used in FL Studio but are not developed by us (Image-Line), so we can't provide these plugins. You can buy them from their respective online developers and their stores:
Nexus 2 from refx.com
Sylenth1 from lennardigital.com
Massive from native-instruments.com
Kontakt from native-instruments.com
Serum from xferrecords.com/
Omnisphere from Spectrasonics
Learn more about VST plugins here on wikipedia: wikipedia.org/wiki/Vst_plugin
Learn how to use 3rd party VST plugins in FL Studio: Installing VST Plugins
Image-Line Support Team