How Tech 2 Blueprints get invented | by Dunk Dinkle | Medium
Nov 25, 2019· Blueprints: Invention is based on blueprint copies, usually referred to as 'BPCs'. You can buy BPCs off of contracts or make BPCs from Blueprint Originals (BPOs). Most BPOs are bought off the NPC market can range widely in price. A Adaptive Invulnerability Field I BPO is 750,000 ISK, while a Keepstar BPO is 700,000,000,000 ISK.