The HalfLife and Portal timeline is long and complicated. Although these stories are set in different locations on Earth, they connect over the years. From Black Mesa's early years and their competition with Aperture Science, to the fall of Aperture and GLaDOS' attempts to keep The Combine out of her facility. This timeline has many important events.

In this video, I explore the whole history and story of HalfLife and Portal. Although Chell and Gordon Freeman never meet, their actions have a huge impact on Aperture Science, Black Mesa and the multiverse.

Timestamps
00:00 Introduction & Spoiler Warning
00:12 Before
02:55 1940s
06:13 1950s
08:49 1960s
13:40 1970s
16:13 1980s
24:05 1990s
31:26 2000s
42:00 May 16th 200
46:21 The Resonance Cascade
58:13 The Fall of Black Mesa
01:11:01 7 Hour War & Start of Combine Occupation
01:17:06 Portal
01:28:19 20YearPeriod
01:37:11 Point Insertion
01:47:36 The Uprising
02:00:55 The Fall of City 17
02:08:18 To The White Forest
02:13:34 The Final Push
02:21:59 5 Years Ago (The Altered Timeline)
02:29:53 The Future (Portal 2)
02:36:00 Wheatley Laboratories
02:42:05 Peer Review
02:46:00 The Multiverse
02:47:28 Closing Thoughts & Ending

HalfLife Decay: Solo mission
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Standard Sources
Game Manuals
HalfLife Series Playthrough Research
Portal Series Playthrough Research
HalfLife 2: Raising the Bar
HalfLife: Alyx Playthrough
Portal/ HalfLife Fandom
Old Valve Forums
Marc Laidlaw's Twitter
Breengrub Twitter
Reddit AMA (w/ HL: Alyx Developers)

GAMES USED
HalfLife
HalfLife: Decay
HalfLife: Opposing Force
HalfLife: Blue Shift
HalfLife 2
HalfLife 2: Episode 1
HalfLife 2: Episode 2
Halflife: Alyx
Portal
Portal 2
Aperture Desk Job

AUDIO USED
HalfLife 2: OST: Escape Array
HalfLife 2 OST: Black Mesa Inbound
Black Mesa OST: Blast Pit 1
Black Mesa OST: Blast Pit 2 Remix
Portal 2 OST: 9999999
Black Mesa OST: Xen
Portal 2 OST: Technical Difficulties
Black Mesa OST: Event Horizon
HalfLife Alyx: Ost: Balcony
HalfLife: Alyx OST: Insubordinate Relocation
HalfLife: Alyx OST: ExtraDimensional Darkness
HalfLife 2 OST: Lab Practicum
Portal 2 OST: There She Is
Portal 2 OST: Bots Build Bots
Aperture Desk Job OST: Cave’s Office
HalfLife 2 OST: Triage At Dawn

#Portal #HalfLife #Timeline