Team Fortress 2 has blood and gore, and you could play in an online game that may contain swearing.
MATURE
Titles rated M (Mature) have content that may be suitable for persons ages 17 and older. Titles in this category may contain intense violence, blood and gore, sexual content and/or strong language
ESRB states that Team Fortress 2 contains "Intense Violence and Blood and Gore."
PEGI states the game contains "Realistic Looking Violence."
most people rate this game very low because of the cartoony graphics and low gameplay
14+ Other sites say M (IGN)
It was rated M by the ESRB when it was released with the original Half-Life on 7 April 1999. The original mod by John Cook and Robin Walker however remains unrated.
It is rated M.
Modern Warfare 2 (mw2) is rated m for MATURE.
It's rated M for Mature
NO IT IS RATED PG-13!!
M
It IS rated M.
It contains Swearing which is why it is rated so.
In Australia it is rated M
It is rated M for violence, sexual content, nudity, drugs/alcohol, and language.