Adobe would prefer if you purchased a subscription to their creative cloud photography plan ($10/month) – but it’s still possible to purchase an individual stand alone version of Lightroom. The video above shows you how.
Here’s a quick link to Adobe’s standalone Lightroom license:
From there you can purchase the full version of Lightroom 6 for $149. Or if you have a previous version of Lightroom you can select upgrade and get it for only $79