Full list of all 19 Hidden Through Time achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Find An Objective
Find Ten Objectives
Find Twenty Five Objectives
Find Fifty Objectives
Find One Hundred Objectives
Find All Objectives OfAMap
Find All Objectives Of Five Maps
Find All Objectives Of Ten Maps
Find All Objectives Of Fifteen Maps
Find All Objectives Of All Maps
Find All Cavemen Objectives
Find All Medieval Objectives
Find All Egyptian Objectives
Find All Western Objectives
Complete An Online Map
Complete Five Online Maps
Complete Ten Online Maps
Complete Twenty Five Online Maps
Complete Fifty Online Maps