Far Cry Primal
Platform: PS4, Xbox One, Windows
The most ancient game on this list, Far Cry Primal takes everything good about their first person shooter series and turns the dial back to 10,000 BC. The guns are gone, replaced with clubs and spears, grenades are a thing of the past (or future, I guess) and vehicles have been replaced by saber-toothed tigers.
Far Cry Primal has you play as Takkar, a member of the Wenja tribe who is fighting not only for survival against other predators, but rival tribes of cannibals and fire worshippers.
Many of the series mechanics remain, with rival outposts to conquer, bosses to kill, and items to unlock to make your missions easier. Shifting the setting back in time actually makes a lot more sense over previous games, with the setting actually enhancing the game play. Far Cry Primal may have been overlooked upon its release by many, but is easily on of the best of the series.