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Popular Steam Guides Written guides, references, and walkthroughs
Portal - Guide des succès
by Shiryu™
Guide pour réaliser les succès ! Ma chaîne Youtube ...
All Transmissions
by MяPieGuy314™
All of the radio transmissions throughout the game...
Weapon Cheats Guide!
by 
This guide will suprise you of how many weapons there is in Portal! You will need to know how to open up the developer console....
Получаем всё достижения в игре Portal
by Marik78
...
Aperture Science Achievement Cheating Guide
by PetTechGuy
This achievement is no doubt impossible to unlock for most people, but if you want to get them by any means necessary without any third-party programs, this video will show you how to do it. This method only works on Windows & Mac and enabling developer c...
Transmission Received Achievement
by lonerunner | tradeswap.ga
This guide is intended to help you easier find all transmissions and set them to their final location where they should receive transmission....
Прохождение игры +получение всех достижений
by TroLL
...
Achievement: Transmission Recived (with pictures)
by |PMG|MiChAeL >D34DLY<
In this guide, I'm going to show you where can you find the radios, and where have you move them to get the achievement. I hope you'll enjoy this guide. :)...
Least Steps Challenges
by Jimo
I will demonstrate how you can complete all of the Least Steps challenges in Portal to work towards the Aperture Science Achievement....
Portal complete, all in one video with set menu !
by XenDave
The set menu is a mighty help to find fast a chamber you looking for. Enjoy !...