The Combined Timeline | COMPLETE Half-Life & Portal Story & Lore
The Valve Universe Theory
Valve World
Evolution of Valve Games 1998-2022
The History Of Valve | WiseFish Ft @WowSuchGaming
Mr Incredible Becoming Old (Your First Valve Game)
I Played Every Valve Game in a Week*
Every Valve Logo (1998 - 2020)
Half-Life & Portal - The Complete Story (What You Need to Know!)
I Fully Completed EVERY Half-Life + Portal Game...
ポータル: Aperture の歴史 (タイムラインと伝承)
Valve's Catwalk Conspiracy
Evolution of Valve Games 1998-2020
Steam now Films your Games
すべての Valve ゲーム...最悪から最高まで! (少なくとも私の意見では)
3,000th Hour in SFM
完全な半減期タイムライン - 半減期から半減期のアリックスまで