According to ESRB, this game contains: Blood, Violence
Parents should keep their children away. It's a very violent game about people fighting to the death for the entertainment of the masses–and it takes no kind of a moral stance on the subject, so it can't even act as a teaching tool.
History buffs might be interested to discover that this game offers a surprisingly accurate depiction of the late Roman Empire. There are still no gladiators hocking name-brand chariots, but maybe they had to save something for the sequel.
Deaf and Hard of Hearing gamers should have no real trouble with the game. All dialogue is subtitled, and there are no important audio cues.