This is an actual question I pose to you. For those who don't know the abilities of either for whatever reason: Eagle vision (Assassin's Creed series): http://assassinscreed.wikia.com/wiki/Eagle_Vision Witcher Senses (Witcher series): http://witcher.wikia.com/wiki/Witcher_Senses This is partly for science. There is an identical post I placed in #offtopic and I am comparing the results in one week.