Portal - Bonus Maps - Test Chamber 18 (Advanced)
2:16
Portal - Bonus Maps - Test Chamber 18 (Advanced)
35.9K viewsJun 1, 2010
YouTubejkong44
Portal 1 Walkthrough - Chamber 18
6:08
Portal 1 Walkthrough - Chamber 18
207K viewsFeb 10, 2012
YouTubeJackster1337
Portal - Test Chamber 18 (Walkthrough)
4:40
Portal - Test Chamber 18 (Walkthrough)
14.7K viewsSep 20, 2019
YouTubeGamivide
Portal: Bonus Maps Test Chamber 18 Advanced
4:13
Portal: Bonus Maps Test Chamber 18 Advanced
4.2K viewsApr 16, 2011
YouTubeshabaddahuha
Portal walkthrough - Test Chamber 18
10:03
Portal walkthrough - Test Chamber 18
370.2K viewsAug 25, 2011
YouTubep2wiki
Portal walkthrough - Test Chamber 18 (Advanced)
9:28
Portal walkthrough - Test Chamber 18 (Advanced)
275.5K viewsSep 28, 2011
YouTubep2wiki
Portal Chamber 18 Walkthrough + radio transmissions - HLFallout.net
7:07
Portal Chamber 18 Walkthrough + radio transmissions - HLFallout.net
26.9K viewsAug 13, 2010
YouTubebrumisator
2:41
Portal - Chamber 18 (least steps)
15.3K viewsNov 23, 2013
YouTubeXorven
3:41
Portal 2 walkthrough - Chapter 4: The Surprise - Test Chamber 18
163.8K viewsJun 8, 2011
YouTubep2wiki
3:56
Portal walkthrough - Chamber 18
162.9K viewsOct 25, 2007
YouTubetharbrick
2:19
Portal walkthrough - Advanced Chamber 18
87.1K viewsOct 25, 2007
YouTubetharbrick
2:29
Portal - Chamber 18 (least portals)
31.7K viewsNov 23, 2013
YouTubeXorven
2:21
Guide: Portal Least Steps Challenge (Test Chamber 18)
26.1K viewsMar 16, 2013
YouTubeJimo
1:37
Guide: Portal Least Time Challenge (Test Chamber 18)
29.5K viewsMar 13, 2013
YouTubeJimo
2:23
Guide: Portal Least Portals Challenge (Test Chamber 18)
18.6K viewsMar 15, 2013
YouTubeJimo
3:16
Portal Least Steps Challenge 18 : 10 Steps
35.9K viewsDec 9, 2007
YouTubenubSawace
10:26
Portal - Walkthrough Part 1 [Chapter 1: Test Chamber 0-7] - W/Commen…
45.7K viewsJun 9, 2012
YouTubeLewisBlogsGaming
Portal walkthrough - Test Chamber 09
21.9K viewsAug 16, 2011
YouTubep2wiki
Steam Community :: Guide :: Portal Reloaded Full Walkthrough
May 13, 2021
steamcommunity.com
1:54
Portal walkthrough - Test Chamber 19
182K viewsAug 29, 2011
YouTubep2wiki
20:49
Test Chamber 19-End - Portal Walkthrough - Chapter 8
544.8K viewsJul 27, 2012
YouTubeKST
3:20
Portal - Test Chamber 15 (Walkthrough)
3.6K viewsSep 20, 2019
YouTubeGamivide
8:40
Portal 1 nivel 18
48.4K viewsJan 21, 2013
YouTubeTheHercof
3:33
Portal Level 18 Walkthrough
142.4K viewsOct 18, 2007
YouTubetinkering_unbound
3:04
Portal 1 Walkthrough - Chamber 16
42.2K viewsFeb 10, 2012
YouTubeJackster1337
6:04
Portal walkthrough - Test Chamber 16
132.9K viewsAug 23, 2011
YouTubep2wiki
3:31
Portal walkthrough - Test Chamber 14
68.1K viewsAug 22, 2011
YouTubep2wiki
6:26
Portal 1 Walkthrough - Chamber 19.5 The Fight, Credits and CAKE!
38.5K viewsFeb 11, 2012
YouTubeJackster1337
14:03
Portal 1 Walkthrough - Chamber 19
354.2K viewsFeb 11, 2012
YouTubeJackster1337
See more videos
Static thumbnail place holder