GameLengths - Average Play Times for Portal 2 (single player campaign)
I was bored so i decided to time myself on how long it would take me to beat portal 2, credits ended at 2:34:14, nothing amazing but i thought i would post
Test Chamber 2 - Course 2 - Mass and Velocity - Co-op Challenges | Portal 2 | Gamer Guides®
Chamber 6 - Chapter 8 - The Itch - Single Player Walkthrough | Portal 2 | Gamer Guides®
The Escape - Chapter 5 - The Escape - Single Player Walkthrough | Portal 2 | Gamer Guides®
Portal 2 on Steam
Portal 2 In 4 Hours? The Steam Timer Is A Lie | Rock Paper Shotgun
It took me 10 years to beat portal 2 and I'm finally happy : r/Portal
Portal: Reloaded Chamber 10 Walkthrough Guide – Guide Fall
Portal 2 Walkthrough Chapter 4
Portal 2 In 4 Hours? The Steam Timer Is A Lie | Rock Paper Shotgun
Review: Portal 2 – Destructoid
Portal 2 took me to long to Finish. : r/Portal
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50% Of Portal 2 Players On Steam Haven't Finished The Game
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Portal 2 on Steam
Portal Reloaded: How to beat the Chamber 15 puzzle - Hot Movies News
File:Portal physics-2.svg - Wikipedia
how long does it take to beat portal - Lisbdnet.com
Portal 2 fans hard at work making unofficial sequel - Checkpoint
Portal 2 Walkthrough Chapter 8
how long does it take to beat portal - Lisbdnet.com