A couple sex scenes. Brief topless nudity is seen.

Blood and some guts are seen. Guns are shot as well.

Not much cussing for a film like this. But "Jesus" and similar words are used a few times in swearing kind of way.

Pot smoking is seen. Drinking and puking are also part of the movie.

There are unseen (except towards the end) 'monsters' that are following the camp counselors and killing them.