Why ?
In January 2008, I was searching for a new project. Portal was out since four months, and still, no-one had already did something really serious around it. I was following a lot a communities, seeing a lot of independant releases, but no mod and no serious story arc. This I why I decided to launch this project.

How ?
At start, the project was rather insignificant. It was not supposed to be a mod (modification of a game), but just a succession of test chambers, without any real logic between each of them. I had no goal, I was just making maps as I saw it. And finally, when I reached a dozen of test chambers, I realized that I would be a shame to waste all my work by only releasing yet another map pack without any real story. This is where I began to write a whole new story and decided to follow the famous belief that prequels are somewhat popular recently.

What ?
Portal: Prelude, as its name states it, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch, even before she was plugged in. At this time, test subjects were monitored by real Aperture Science employees whose work was tedious, lengthy and repetitive. This is why they decided to build a great artificial intelligence that could both replace them in these difficult tasks, but also take responsibility for many other tasks within the complex and compete with Black Mesa's superiority. All employees of the Aperture Science complex are now eagerly awaiting GlaDOS. Maybe even a little too eagerly, as the upcoming events will tell...

Who ?
My goal was to make it a personnal project, without telling anyone about it. I wanted to surprise everyone by releasing a quality, polished and fully finished game, offering roughly the same amount of playtime than Portal. As months passed, I had more and more difficulties to keep working regularly on it. In real life, I'm both a student and an employee, and that didn't left me a lot of time to work on the game. This is where I decided to ask for some help, mainly from Jérémy "Capitaine Mousse" Barbe, who helped me by making four of the nineteen test chambers while I was working on the final level. Marc "Moroes" Bidoul helped me too, by making a few 3D models and textures.

How long ?
Eight months. Not eight month of continuous work of course, but eight month with some days filled with dozens of hours of hard work. I worked on the nineteen test chambers for 3 to 4 months, followed by 2 months on the final level, and 2 months of tests, debug, and polishing (interfaces, voices, commentaries, etc.). I must confess that it took me a lot more time than I initially thought, mainly because I had exams and work to do on behalf.

And after ?
In June 2008, I learned as everyone else that Valve was working on an official prequel of Portal. I must say that I was mostly the only guy on Earth not really happy by this announce. So, I decided to work twice as hard to release my version way before Valve's one. I hope that they will not take it too personnally, because mine was in development 5 months before their announcement.

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Ok, that's right, it's a kind of big surprise. After 114,000 votes, Portal: Prelude didn't win the ModDB's Mod of the Year Awards, but made it to the third place! Surprinsigly enough, we also managed to beat the most acclaimed mods of 2008, including nearly every mod that got into Steam during the year.

  1. Project Reality (Battlefield 2)
  2. Zombie Panic: Source (Half-Life 2)
  3. Portal: Prelude (Portal)
  4. First Strike (Battlefield 2142)
  5. Zombie Master (Half-Life 2)
  6. Pirates, Vikings and Knights 2 (Half-Life 2)
  7. Eternal Silence (Half-Life 2)
  8. Age of Chivalry (Half-Life 2)
  9. Stargate Empire at War (Starwars Empire at War)
  10. Half-Life 2: Wars (Half-Life 2)

I must say that I'm really happy with the results, it's kind of the best place ever for a little mod like ours that grew up rapidly from nowhere with a really small team but a really big motivation. It wouldn't have been fair to finish first or second regarding the amount of work and devotion put into some of the mods out there. Some of them who recreate everything from scratch and build something during years with sometimes hundreds of people. That's why I'm happy to be third!

I must say that our little team is quite proud of this result! After all, it proves that even if we crossed a terrific jungle of insults, harsh criticism and mockery, we managed to please the people at which this mod was first aimed: all-time Portal fans, hardcore challenge-looking players and a few of them who thought Portal: Prelude was cool enough to buy Portal once and for all (no joke here, I could cite you some e-mails I received).

Thanks to all our fans, to all the people who helped us and tried to help us in any way (e-mails, voices, forums, scores, bugfix, etc.), and thanks to all the people who sent us feedback via e-mails, comments, discussion boards or our forums. Thanks for the hundreds (maybe thousands) of e-mails to tell us your experience, your disappointements and your best moments. We couldn't reply to everyone (even if I tried to reply to at least 70-80% of them), but I can assure you we read everything.

Check our "meet the team" page to see all the people who really helped us.

Portal: Prelude 1.1.5 released!

Portal: Prelude 1.1.5 released!

News 13 comments

This new version is shipped with more than 115 bug fixes, improvements and additions (since 1.0.0). We know everything's still not perfect, but we believe...

Portal: Prelude 1.1.0 released!

Portal: Prelude 1.1.0 released!

News 29 comments

Portal: Prelude 1.1.0 released! This new version is shipped with more than 80 bug fixes and additions, along with slightly easier first levels.

Portal: Prelude Released!

Portal: Prelude Released!

News 26 comments

That's it! Portal: Prelude is released! Thanks to FilePlanet and Planet Half-Life, you can now download the game one day before the official release date...

Day One : The Trailer

Day One : The Trailer

News 26 comments

Here we are, Day One. The trailer is up and running.

RSS Files
Portal: Prelude 1.1.5 (archive version)

Portal: Prelude 1.1.5 (archive version)

Full Version 49 comments

All the files needed to make Portal: Prelude run. This version is exactly the same than the "installer" version except that it works better for Mac OS...

Portal: Prelude 1.1.5 (complete installer)

Portal: Prelude 1.1.5 (complete installer)

Full Version 140 comments

This new version is shipped with more than 115 bug fixes, improvements and additions (since 1.0.0). We know everything's still not perfect, but we believe...

Portal: Prelude 1.1.5

Portal: Prelude 1.1.5

Full Version 4 comments

This mod by the Portal: Prelude Team is the prequel to the Portal game. Features include more gameplay hours than the original game, 8 chapters, 48 challenges...

Comments  (0 - 10 of 399)
Guest
Guest

i think its abbandoned :c

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Secret_Coming
Secret_Coming

Well it was released.

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glasgow-mega-snake
glasgow-mega-snake

legendary mod that i played for first time 11 years ago, but actually there is much more puzzles for speed reaction and timings than for brain work. For long time earlier i skipped last two test chambers with noclip in every walkthrough, but once upon, maybe 4 years ago, i decided to try to beat this maps for honest way, and actually there was nothing difficult to realize, there is need just do some actions very quickly for passing rooms.
Also there is to many times of using assets from half life 2, from doctor Kleiner's lab and Black Mesa east, and in whole high-tech Aperture Science complex this garbage look very weird (actually i dunno thing about process of creation of new models, maybe it's very difficult, especially for free product, well it's ok i think).
But everything else in this addon is awesome. Inspite of what i said previously, test chambers still look original, still make player to think and sometimes you can meet ideas that wasn't in original game, but could be. Test chambers try to use new original devices that player should iterract. Good characters, new locations, music, ambience, cool attempt to introduce this storyline to official canon and universe of hl/portal, and of course cool eastereggs. I really can't understand why this addon still have no page in steam, this is the best addon for portal 1 (like a Portal Mel for Portal 2, i think, and yes, Portal 1 have addons in steam). Thanks to Portal Prelude Team for this great creation and unique experience for years

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oyqea-ntrtaynmnt-llc
oyqea-ntrtaynmnt-llc

Well, they only had one year to make it.

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Guest
Guest

THIS GAME IS TOP AMAZING JOB! i'm sorry for my english.. i'm italian

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oyqea-ntrtaynmnt-llc
oyqea-ntrtaynmnt-llc

The official website now links here, so here is an archived version for you: Web.archive.org

UPDATE: Nevermind, it's back again.

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Guest
Guest

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Guest
Guest

So this isnt portal. Its not a puzzle game, more a platformer. Things are difficult for the sake of being difficult. Like, idk, megaman, if the distance across the lava pit you have to jump is exactly your max jump distance.

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Guest
Guest

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Not_Mizzel
Not_Mizzel

i have been trying to make a mod, and i can not launch hammer it give me an error saying gameconfig.txt does not exist in subdierectory

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Highest Rated (7 agree) 7/10

It must be admitted that if you take nothing else from this mod, its sheer scale is quite exceptional. With new characters, voicework, puzzles and approximately double the length of the original portal (not to mention its difficulty in places) it is hard to den the dedication and hard work that has gone into this mod. The storyline is fairly solid – although I expected the malice of on of the observers to continue – which is impressive and a testament to what can happen if a mod team sit down…

Nov 5 2010 by newnowmusic

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