where can i buy hellblade?

Hellblade is available at digital-only for both PlayStation 4 & PC.

For PlayStation you can only buy from the PlayStation Store:

PlayStation Store EU

PlayStation Store US

For PC you can buy from Steam, GOG.com and Humble Store:

Humble Store

Steam

GOG.com

To get the latest updates about Hellblade, just visit Ninja Theory's Facebook page or follow them on Twitter @NinjaTheory.

Check out these minor Hellblade spoilers from Kotaku.com.