While we get little snippets here and there, for most outsiders, our knowledge of how a video game is actually made is fairly limited. Especially when it comes to how long it takes to make one.

I was flicking through the Killzone art book over the weekend, and came across a timeline of the series’ development history. Many people will be familiar with Killzone’s chequered past when it comes to official reveals (its PS3 debut especially), but what I found interesting was how long the game had been in production behind the scenes.

The first Killzone was released in November 2004, on the PS2. You’d figure back then that the game would have been in development for a couple of years, but that’s if you assume that a studio, design, vision and money had all spring out of the ground instantaneously.

They didn’t. Here’s an abridged version of what you’ll find in the book, showing that development on what would become Killzone began all the way back in 1999.

1999, March – Representatives of three Dutch studios (who are planning to merge) visit Sony and pitch three demos. One of them is a first-person shooter/RPG hybrid called Core.

1999, Early Fall -Sony meets with the studios to “discuss a first-person shooter around a space war theme”.

1999, December – One of the Dutch studios (Lost Boy Games) gets a “pre-production contract” to make a sci-fi FPS demo called Marines.

2000 Marines is presented to Sony, and has its name changed to Kin.

2000 – Lost Boy begins work on another shooter, Shellshock: Nam 67, to pay the bills, since they’re reluctant to rely solely on Sony’s FPS deal.

2002Kin has another name change, this time to Killzone.

2003 – The three Dutch studios finally merge, and are now called Guerilla Games.

2004, MayKillzone is shown publicly for the first time at E3. There are now around 60 people working on the game.

2004, September Shellshock: Nam 67 is released.

2004, NovemberKillzone is released on PS2.

2004, December – Guerilla signs an exclusivity deal with Sony, pledging to make a Killzone game for the PSP and another Killzone game for console.

From there, the rest is history.

Now, of course, not every game is like this. Some don’t require as many people, some don’t require a big publishing deal, some just aren’t as big or time-consuming.

But Killzone isn’t a special snowflake, either. When developers and publishers get all proud and misty-eyed about their “new IP” at a press conference, there’s a reason for that beyond appealing to the “ungh it’s another sequel” messageboard crowd. New games can take a lot of time and work to get up and running!