Talk:Sentinels/@comment-35777405-20180604174909/@comment-2604:6000:A246:ED00:F561:BC45:8227:FA90-20181230031201

Alternate theory: The Orokin did make them and used them for multiple purposes (The three Prime versions we have and any that haven't been released yet) When we killed them all, without masters they kinda ended up collecting dust/ breaking till we found them again and started mass producing them.