
Caution: Physics clean-up in progress
One thing I have never, ever been is a fan of puzzle games.
Just never enjoyed them. However, this game easily makes the list at #3, and I remember quite clearly when a friend was explaining to me the concept of Portal, Valve’s highly-celebrated FPS puzzle game, which came out in 2007. And I was enthralled.
He explained it thusly:
“Okay, so you have this computer that wants to test you. And the tests are getting out of these puzzles, like a platform game. Except you have a gun that fires portals.”
Portals can be spawned on any two compatible surfaces with the portal gun, one orange and one blue. The way in which portals interact is kind of difficult to explain on paper, but highly intuitive when it comes to gameplay.
Essentially, the game is a physics and timing game. You are Chell, a silent character who finds herself amidst a computer-run testing facility. The computer is GLaDOS, who’s eerie robotic voice will lead you through the testing grounds with an ever growing scientific interest in watching you die.
Chell is given two parts that make up a single portal gun, or “Aperture Science Handheld Portal Device”; one trigger firing an orange portal, the other firing a blue portal; these portals join to enable Chell to walk through one portal (fired onto one wall) and walk out the other (fired on any other wall, ceiling or floor).

It is as simple as this!
Okay, for those who haven’t played it, it all sounds too complex. But it is a wonderfully simple game that taxes the brain just to the right level: when posed with a problem that one cannot solve, you have a finite amount of time before you crack a wobbly and through the controller at the television.
Every one of the problems will have you thinking just up to the point of frustration, and you feel so clever at the end of every level.
The puzzles are a combination of physics problems (how to use inertia to jump a very tall wall, etc…) and timing problems (platforms suspended above acid moves around the level, so you have to jump on and off these platforms). And they are all fun.
The story is very light-on, which is to say that there isnt much said, but the game’s brilliantly constructed atmosphere provides just enough of an edge to enforce the feeling that something just isn’t right at Apeture Sciences. You find blood-scribbled laments from previous test subjects hidden through the levels, and GLaDOS (the centre’s AI) is so wonderfully menacing in such a cold blooded, logical way.
It is testament that every person I’ve ever spoken to has only good things to say about Portal, and moreso that it is still on sale (granted, as part of the Orange Box, which I still say is tip-top-value).
I started replaying this through a few weeks ago, and it still has the charm and fun of an original playthrough. A truly great offering from Valve and certainly one of the gaming highlights of the decade.
Three down and two to go, check back in tomorrow to see who claims the runner up in our personal game of the decade countdown!