KONTAKT 7 PLAYER: The free app for KONTAKT instruments
Bundles : Komplete Start | Komplete
Exploring the Sound of Output | Native Instruments - YouTube
Audio Imperia Native Instruments Offer 2020 - "Jaeger, Talos, Cerberus, Trailer Guitars 2 and Legacy" ($399/bundle) Up to 50% off single libraries including Nucleus and Areia which aren't in bundle through 31 August : r/AudioProductionDeals