The Science of Half-Life's Resonance Cascade
19:07
The Science of the Portal Gun
12:46
The Science of the Gravity Gun
26:16
Firearms Expert Reacts To Half-Life Franchise Guns
14:34
Which Barney is Barney?
13:51
A TERRIFYING Fate | The Barnacle | FULL Half-Life Lore
12:22
What Actually Happened During the Seven Hour War
26:48
Why Did PS1 Games Look Like That?
18:30