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Popular Steam Guides Written guides, references, and walkthroughs
Portal - Complete Walkthrough
by Khonziel
Complete walkthrough in a single video....
Portal: Prelude - Complete Walkthrough
by Khonziel
Complete walkthrough in a single video....
How to disable blood on Portal
by RYNO MAN
This guide will provide information on how to disable blood/gore on Portal. This guide will cover two different methods for disabling blood/gore on Portal. It also provides information about the console....
Rattmann Den Locations (Including Secret 6th Chamber)
by ♡ emotionally exhausted
This guide will show you all 6 Rattmann Dens In Portal!...
All the challenges
by Xorven
In this place, there are the videos and the objectives of Portal challenges. Achievements to unlock: Basic Science - Rocket Science - Aperture Science Practice is required to earn these achievements. Good viewing ;)...
The advanced chambers (glitches and shortcuts)
by Xorven
There's a little guide about the advanced test chambers. Achievements to unlock : Cupcake - Fruitcake - Vanilla crazy cake Good viewing ! ...
Camera Shy (with screenshots)
by Mister Jarate
No description, numbers only...
The Quick Camera Checklist
by Slim Dong Huhn
If you want to find the destroyable cameras for the achievement 'Camera Shy' all by yourself, because you want to make this achievement more challenging, use this simple checklist instead of a guide....
Transmission Received Achievement
by lonerunner
This guide is intended to help you easier find all transmissions and set them to their final location where they should receive transmission....
Passage game +getting all achievements
by 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....