Far Cry Primal has an Assassin's Creed and Blood Dragon easter eggs
All of these games are totally in the same universe.
Even though Far Cry Primal released today, gamers have already discovered two easter eggs calling back to Ubisoft's other games, Assassin's Creed and Far Cry 3: Blood Dragon. Both easter eggs were discovered by YouTube OniZombies, who posted videos on where to find them.
The Assassin's Creed easter egg, as seen above, has Primal players watching someone performing the iconic 'leap of faith' from the Assassin's Creed series. The easter egg occurs during the "Fly Like a Bird" mission.
The Blood Dragon easter egg, seen above, has players going on a journey to find the Blood Dragon itself. Finding the Blood Dragon will give you an achievement, but unfortunately you can't get close enough to touch it.