Many of you will agree that Orange Box is a must have game. It has 5 games including Half Life 2, Half Life 2 Episode 1, Half Life 2 Episode 2, Portal, and Team Fortress 2.
Most of these games taake about 4 to 5 hours to finish, but Team Fortress 2 for the online people, racks up a good 60 + Hours Easily.
Now, TF2 is a game where you have 9 classes, and teams for 4v4, to 16v16. Now, with that, there comes an achievment system. The one thing about it, is like most rants to get achievements, it takes forever to get an achievement. Example, Some can be easy, such as OMGWTFBBQ, which is killing enemies with a taunt as pyro. Some, can be as hard as, play 1 round without firing a shot, and finish the game on the top of the leader board. Very fun game.
Now, The Half life Series. Racks up a good 4 hours per game. very good storyline, and epic weapons that will not only blow your mind, It will blow the mind off of anything in your way. Weapons such as Crowbars, shotguns, and Grenades will make this game series make everybody love puzzles and Violence.
Portal, the 5th and last game on the orange box. Racks of 2 hours, and has great replayability with advanced levels making you pull your hair out. Now, It follows Chell making her way through puzzles with the Portal gun, or ASPHD, if you want. Now, the huge plot twist is, most people go insane through the test, and GLaDOS, the main agatonist, betrays you and ends with an epic showdown of poison, a fire pit, and a very big explosion, followed by a fall.
Honestly, I give this game 5/5, because of its replayability, and it is a great deal.