The Portal Iceberg: Explained
3:43:56
Over 3 Hours of Portal Lore
52:25
The SCP Iceberg Explained (COGNITOHAZARD)
11:09
Reading Portal 2's Negative Reviews (So That You Don't Have To)
33:52
The Half-Life Iceberg: Explained
56:19
Portal Retrospective
24:44
Aperture's Unseen Hero | Doug Rattmann | Full Portal Lore
37:19
This Youtube Iceberg Explained
31:02