The Entertainment Software Rating Board has rated Serious Sam Collection for PlayStation 4 and Xbox One.
A Serious Sam Collection was previously released for PlayStation 3 and Xbox 360. It includes Serious Sam HD: The First Encounter, Serious Sam HD: The Second Encounter, Serious Sam 3: BFE, and Serious Sam: Double D XXL.
Here is the ESRB’s description of the collection:
This is a collection of first-person shooters in which players battle aliens and monsters in frenetic combat. Players use pistols, machine guns, shotguns, and sledgehammers to kill numerous creatures. Large blood-splatter effects occur during combat. Enemies are sometimes shown blowing themselves up into bursts of limbs and blood. Players are also able to rip the eyes out of creatures’ heads and/or rip the hearts out of soldier-like aliens. During the course of the game, harpy-like enemies are depicted topless (though usually from a distance). One character briefly references drugs in the dialogue (e.g., “I’m supposed to be doin’ blow off a stripper’s a*s right now.”). The words “f**k” and “sh*t” appear in dialogue.
Update 01/16/19 at 2:40 a.m.: The Pan European Game Information board of Europe has also rated Serious Sam Collection for PlayStation 4 and Xbox One. PEGI’s description confirms the collection’s contents:
Serious Sam Collection is a compilation of games that comes with three games: Serious Sam HD: The First Encounter, Serious Sam: The Second Encounter and Serious Sam 3: BFE.