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Portal was a classic from out of nowhere

Why I Love: YoYo Games' Russell Kay remembers how The Orange Box toss-in stole the whole Half-Life show

Why I Love is a series of guest editorials on intended to showcase the ways in which game developers appreciate each other's work. This edition was contributed by Russell Kay, chief technology officer at YoYo Games, the company behind the GameMaker line of game development tools, the latest of which, GameMaker Studio 2, entered open beta on Switch earlier this month.

I didn't see Portal coming. I don't think anyone saw Portal coming. The four-hour puzzle adventure tossed into Valve's Half-Life 2 anthology, The Orange Box, presented itself as little more than a neat little curio. A fun side dish to Gordon Freeman's entrée. So when I picked up The Orange Box upon its release, I occupied my nights exploring City 17 and shooting headcrabs. It was during lunch at the office, however, where I dipped into Portal. And good god do those orange and blue ovals have a way of transporting you!

There's so much to love about Portal - its puzzle design, writing, art direction, etc. - and gush about it I will, but before I get to all of that, it's important to note just how mesmerizing the portals are in terms of concept, tech, and just playfulness. The fact that Valve was rendering two different places at once - and that you could even watch yourself from almost anywhere in the room - was a technical marvel and immediately gratifying to simply tinker around with. That it even incorporated physics into the equation, so that one's velocity affects their propulsion coming out the other side, was simply masterful! I could have played around with banal blocks all day, tossing them into these whimsical gateways. It's little wonder then that your biggest ally in the game is an inanimate "companion" cube. (Who needs friends when you've got portals?!)

Between a homicidal robot captor, abundant Aperture Science cubes and glimpses of themselves through tears in the fabric of space itself, Portal players had all the company they would ever need.

Yet Valve didn't just stop there. The portals were the starting point, not the ending one. Instead of simply giving us some joyful little puzzles and calling it a day, Valve fleshed this concept out with the same level of craft and personality that made Half-Life 2 such an immersive experience. While set entirely within the confines of a singular science facility, Portal fleshes out its cast in a way that not only matches what the studio accomplished in its Half-Life saga, but in many ways bested it.

"Portal fleshes out its cast in a way that not only matches what Valve accomplished in its Half-Life saga, but in many ways bested it"

At no point in Portal is the player forced to sit through a talking heads segment of NPCs blathering exposition at you. Instead, the most talkative character is a demented AI that begins as an unassuming entity that's seemingly little more than the futuristic equivalent of the Microsoft Office anthropomorphic paper clip helper, and ends up as one of gaming's most beloved antagonists. Indeed GLaDOS subverts the stereotype of the ominous AI, by having a strong personality with laughably obvious desires as they go about their feeble attempts to diminish your spirits, through comically inept verbal abuse. GLaDOS may not have a heart, but she wears whatever the machine equivalent of that is on her sleeve.

And it's not just GLaDOS that offers this left-field whimsy, but the entirety of Aperture Science is filled with these kinds of amusing details. The turrets themselves speak, with innocent, childish worry - the exact opposite of what one expects a talking machine gun to sound like. It's not just goofy robots either, as Portal contains one human character NPC, even if they're never seen. Since dubbed the "Rat Man", there's another person who has undergone these trials before you, offering such sage advice as "the cake is a lie" scrawled in mad graffiti found in abandoned maintenance shafts. It's funny, sure, but it also offers an extra layer of intrigue to the proceedings, as well as adding a sense of raw, human panic to this isolating, antiseptic facility (plus it's just funny to imagine previous Aperture test subjects being that motivated by cake.)

"Following Portal is a tall order, not just because it's an amazing game, but because it defied every expectation of what a game could be at the time"

While Portal fired on all cylinders, it was smart enough to not overstep its ambition. It's a very tight package at a mere few hours long, with no fat on its bones. As much as I enjoyed its sequel, something was lost in translation, going from a fresh novelty to a bombastic AAA blockbuster, even if the writing and puzzles remained as sharp as ever. It was like going from The Matrix - something exciting and new - to its well produced, but ultimately familiar and bloated sequels.

Following Portal is a tall order, not just because it's an amazing game, but because it defied every expectation of what a game could be at the time. This was 2007, when games came in two categories: full-priced retail affairs, and very small arcade games (think Geometry Wars). We didn't really have modestly-priced, four-hour games back then. That wasn't really a thing. And it certainly wasn't a thing for a major studio like Valve that specialized in high end spectacles. The fact that Portal had almost no marketing behind it and wasn't even being sold à la carte further suggested that it would be a mere bonus feature in the larger collection that was The Orange Box. Slowly discovering that it was so much more than that made it among the most pleasant surprises I've ever encountered in gaming.

Portal may have only been a few hours long, but over a decade later it's still a part of me.

Looking for a little more Portal love? Sperasoft's Steven Thornton wrote about the sequel for us in a previous Why I Love column!

Upcoming Why I Love columns:

  • Tuesday, September 11 - Snowcastle Games' Thomas French on Homeworld
  • Tuesday, September 25 - Sumo Digital's Emily Knox on Metal Gear Solid
  • Tuesday, October 9 - Perfectly Paranormal's Ozan Drøsdal on Worms: Armageddon

Developers interested in contributing their own Why I Love column are encouraged to reach out to us at

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