Extrememly fun but not for people with more mature tastes and sensibilities. Grope your way to the top of a tower constructed of strapping young men.

While still in early development DayZ is a great game to play with a group of friends as you battle the elements, zombies, and other players to survive.

CS:GO has a perfect balance of luck and skill making it fun for any skill level while still catering to the hardcore competetive playerbase.