The Sid Meier's Civilization games have been packed full of hundreds of achievements since the fifth installment, with a whole host of challenges for determined players to seek out. In Civilization 6 these difficult tasks are even trickier. While there are some that players might unlock accidentally through normal play, others require specific routes through the game or gunning for strange circumstances from the beginning and potentially throwing a spanner in the works of long-term success in the intricate strategy game