Exploring Half-Life 1's Longest Possible Backtracks
31:21
Breaking Half-Life 2 to Play it in Reverse (the Real Longest Possible Backtrack)
30:50
How I beat Half-Life with no mouse movement
40:32
Is it Possible to Beat Half Life without Taking Damage?
43:08
Every Softlock in Portal
20:57
Half-Life: Blue Shift - Sep. 2000 Prototype Comparison
14:56
Bizarre Spots in Half-Life: Opposing Force
22:50
Is It Possible To Beat Half-Life Using Only The Crowbar?
16:21