Portal Is Perfect
2:51:23
The Combined Timeline | COMPLETE Half-Life & Portal Story & Lore
45:08
The Existential Fear of The Stanley Parable
32:10
Everything that lives is designed to end.
19:10
Portal 2 - The Moron Theory
18:41
Portal Gave Us The 2 GREATEST Video Game Songs Of ALL TIME
1:05:40
I Fully Completed EVERY Half-Life + Portal Game...
1:19:27
The man who tried to fake an element
28:15