Not being a geek or nerd but these games are really good, even a person who's new in video games would be excited to play the game. Now in Prototype you're a person who has genetic powers and can destroy anything here and must unravel the truth of how you came to be and the mysterious but deadly Infected. The Fallout 3 takes place in a post apocalyptic world where people have hidden in "Vaults" to escape a Nuclear World War and radiation . You are a inhabitant of a vault and you get out of the vault in search of you're father. I wish to buy both but I'm running out of cash, both games almost cost the same . Which game should I buy ?