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Δημοφιλεις οδηγοι Steam Γραπτοί οδηγοί, αναφορές, και βοηθήματα
Weapon Cheats Guide!
από 
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
από Marik78
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Portal complete, all in one video with set menu !
από XenDave
The set menu is a mighty help to find fast a chamber you looking for. Enjoy !...
Transmission Received Achievement
από 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....
Прохождения бонусных карт на кол-во шагов
από Extragamer
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Console Commands, Trick for challenge maps, Camera Shy/Final Transmission location and more
από Ov3RT4K3R
Console Commands Trick for challenge maps Camera Shy locations Final Transmission locations Den locations and more...
Achievement: Transmission Recived (with pictures)
από |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. :)...
Прохождение бонусных карт на время
από Extragamer
Для того чтобы выполнить эти 3 достижения в Portal: 1)Основы науки - Закончить все испытания с бронзовыми медалями. 2)Настоящий учёный [/...
Passage game +getting all achievements
από TroLL
This guide provides a video course pass of the game, as well as the passage of challenges and advanced maps. Also along the way you will find out what achievements you can get....
Least Steps Challenges
από Jimo
I will demonstrate how you can complete all of the Least Steps challenges in Portal to work towards the Aperture Science Achievement....