Locations in the Half-Life and Portal universe

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This article lists the locations featured in the Half-Life and Portal universe, sorted by game and in chronological order.

Half-Life and its expansions[edit]

Half-Life[edit]

Main locations: Black Mesa Research Facility, Xen

Chapter	Location		Map(s)
Hazard Course	Sector A - Black Mesa Training Facility		`t0a0`, `t0a0a`, `t0a0b`, `t0a0b1`, `t0a0b2`, `t0a0c`, `t0a0d`
Black Mesa Inbound	Black Mesa Transit System - Sector C Line		`c0a0`, `c0a0a`, `c0a0b`, `c0a0c`, `c0a0d`, `c0a0e`
Anomalous Materials	Sector C - Anomalous Materials Laboratory		`c1a0`, `c1a0a`, `c1a0b`, `c1a0d`, `c1a0e`
Unforeseen Consequences	Sector C - Anomalous Materials Laboratory		`c1a0c`, `c1a1`, `c1a1a`, `c1a1f`
Unforeseen Consequences	Sector B - Coolant Reservoir Facility		`c1a1b`, `c1a1c`, `c1a1d`
Office Complex	Sector D	Administration Center	`c1a2`, `c1a2a`, `c1a2b`, `c1a2c`, `c1a2d`
"We've Got Hostiles"		High Security Materials Storage Area	`c1a3`, `c1a3a`, `c1a3b`, `c1a3c`, `c1a3d`
Blast Pit		Silo D	`c1a4`, `c1a4b`, `c1a4d`, `c1a4e`, `c1a4f`, `c1a4g`, `c1a4i`, `c1a4j`, `c1a4k`
Power Up	Sector E	Track Control	`c2a1`, `c2a1a`, `c2a1b`
On A Rail		Materials Transport	`c2a2`, `c2a2a`, `c2a2b1`, `c2a2b2`, `c2a2c`, `c2a2d`, `c2a2e`, `c2a2f`, `c2a2g`
On A Rail		High Altitude Launch Center	`c2a2h`
Apprehension	Unnamed industrial area		`c2a3`, `c2a3a`, `c2a3b`, `c2a3c`, `c2a3d`, `c2a3e`
Residue Processing	Biological Waste Processing Plant		`c2a4`, `c2a4a`, `c2a4b`, `c2a4c`
Questionable Ethics	Advanced Biological Research Lab		`c2a4d`, `c2a4e`, `c2a4f`, `c2a4g`
Surface Tension	Sector G - Topside Hydro Plant		`c2a5`
	Black Mesa desert		`c2a5a`, `c2a5w`, `c2a5x`
	Topside Motorpool		`c2a5b`, `c2a5c`, `c2a5d`, `c2a5e`, `c2a5f`, `c2a5g`
	Waste Processing Area 3		`c2a5g`
"Forget About Freeman!"	Sector F	Lambda Bunker	`c3a1`, `c3a1a`, `c3a1b`
Lambda Core		Hazardous Materials Handling Bays	`c3a2e`, `c3a2`
		Lambda Reactor Coolant System	`c3a2a`, `c3a2b`
		Lambda Reactor	`c3a2c`, `c3a2d`, `c3a2f`
Xen	Xen	—	`c4a1`
Gonarch's Lair		—	`c4a2`, `c4a2a`, `c4a2b`
Interloper		—	`c4a1a`, `c4a1b`
Interloper		Mines	`c4a1c`, `c4a1d`, `c4a1e`, `c4a1f`
Nihilanth		—	`c4a3`
Endgame		—	`c5a1`

Half-Life: Opposing Force[edit]

Main locations: Santego Military Base, Black Mesa Research Facility, Xen

Note: In all chapters after We Are Not Alone, Xen can be accessed using the Displacer Cannon's secondary fire.

Chapter	Location		Map(s)
Boot Camp	Santego Military Base		`ofboot0`, `ofboot1`, `ofboot2`, `ofboot3`, `ofboot4`
Incoming	Inside of an Osprey Heliplane above the Black Mesa desert		`of0a0`
Welcome to Black Mesa	Black Mesa Medical Lab		`of1a1`
Welcome to Black Mesa	Black Mesa Transit System		`of1a2`, `of1a3`, `of1a4`, `of1a4b`
"We Are Pulling Out"	Black Mesa Transit System		`of1a5`, `of1a5b`, `of1a6`
Missing in Action	Blast furnaces		`of2a1`, `of2a1b`
Missing in Action	Storage Areas 2 and 3		`of2a2`, `of2a3`
Friendly Fire	Sector E - Lambda Sector Transport		`of2a4`, `of2a5`, `of2a6`
We Are Not Alone	Sector F - Lambda Reactor		`of3a1`
	Xen		`of3a1b`, `of3a2`
	Sector A - Black Mesa Training Facility (Displacer Cannon)		`of3a2`
Crush Depth	Hydrofauna Studies Laboratory		`of3a4`, `of3a5`, `of3a6`
Crush Depth	Xen (Displacer Cannon)		`of3a4`, `of3a5`, `of3a6`
Vicarious Reality	Sector E - Black Mesa Biodome Complex		`of4a1`, `of4a2`, `of4a3`
Vicarious Reality	Xen (Displacer Cannon)		`of4a1`, `of4a2`, `of4a3`
Pit Worm's Nest	Waste Processing Area 3		`of4a4`, `of4a5`
Pit Worm's Nest	Xen (Displacer Cannon)		`of4a4`, `of4a5`
Foxtrot Uniform	Sector G	Freight hangars	`of5a1`, `of5a2`, `of5a3`
	Sector G	Topside Hydro Plant	`of5a4`
	Xen (Displacer Cannon)		`of5a1`, `of5a2`, `of5a3`, `of5a4`
"The Package"	Black Mesa desert		`of6a1`
	Ordinance Storage Facility		`of6a2`, `of6a3`
	Parking Garage		`of6a3`, `of6a4`
	Xen (Displacer Cannon)		`of6a1`, `of6a2`, `of6a3`, `of6a4`
Worlds Collide	Level 4 Storage Unit		`of6a4b`, `of6a5`
Worlds Collide	Xen (Displacer Cannon)		`of6a4b`, `of6a5`
Conclusion	Various locations, inside of an Osprey Heliplane	—	`of7a0`

Half-Life: Blue Shift[edit]

Main locations: Black Mesa Research Facility, Xen

Chapter	Location		Map(s)
Hazard Course	Sector A - Black Mesa Training Facility		`ba_hazard1`, `ba_hazard2`, `ba_hazard3`, `ba_hazard4`, `ba_hazard5`, `ba_hazard6`
Living Quarters Outbound	Area 8 Topside Dormitories		`ba_tram1`
Living Quarters Outbound	Black Mesa Transit System - Sector C Line		`ba_tram2`, `ba_tram3`
Insecurity	Sector C	Area 3 Security Facilities	`ba_security1`, `ba_security2`
	H-E Particle Labs	`ba_maint`
	Sector G	Main Access Lift	`ba_elevator`
Duty Calls		Small Materials Storage Area	`ba_canal1`, `ba_canal1b`
Duty Calls		Drainage Canal	`ba_canal2`, `ba_canal3`
Captive Freight	Freight Yard		`ba_yard1`, `ba_yard2`, `ba_yard3a`, `ba_yard3b`, `ba_yard3`, `ba_yard4`, `ba_yard4a`, `ba_yard5`, `ba_yard5a`
Focal Point	Section A-17 Prototype Labs		`ba_teleport1`, `ba_teleport2`
Focal Point	Xen		`ba_xen1`, `ba_xen2`, `ba_xen3`, `ba_xen4`, `ba_xen5`, `ba_xen6`
Power Struggle	Section A-17 Prototype Labs		`ba_power1`, `ba_power2`
A Leap of Faith	Section A-17 Prototype Labs		`ba_teleport2`
Deliverance	Black Mesa South Access Tunnel		`ba_outro`
Deliverance	Xen		`ba_outro`

Half-Life: Decay[edit]

Main locations: Black Mesa Research Facility, Xen

Chapter	Location	Map(s)
Dual Access	Sector C - Anomalous Materials Operations Center	`ht01accident`, `ht01accident2`
Hazardous Course	Sector A - Black Mesa Training Facility	`ht02hazard`
Surface Call	Satellite Communications Center	`ht03uplink`
Resonance	Unnamed Decay location	`ht04dampen`
Resonance	Black Mesa Transit System	`ht04dampen`
Domestic Violence	Black Mesa Transit System	`ht05dorms`
Domestic Violence	Level 3 Dormitories	`ht05dorms`
Code Green	Black Mesa Air Control	`ht07signal`
Crossfire	Gamma Labs	`ht10focus`
Intensity	Alien Quarantine Labs	`ht11lasers`
Rift	Gamma Labs	`ht12fubar`, `htoutro`
Xen Attacks	Xen	`ht99alien`
Xen Attacks	Parking Garage	`ht99alien`

Half-Life 2 and its Episodes[edit]

Half-Life 2[edit]

Main locations: City 17, The Wasteland

Chapter	Location	Maps(s)
Point Insertion	City 17 Trainstation	`d1_trainstation_01`, `d1_trainstation_02`, `d1_trainstation_03`, `d1_trainstation_04`
"A Red Letter Day"	Kleiner's Lab	`d1_trainstation_05`, `d1_trainstation_06`,
Route Kanal	Canals	`d1_canals_01`
	Station 1	`d1_canals_01a`, `d1_canals_02`,
	Unnamed station	`d1_canals_03`
	Station 6	`d1_canals_05`
Water Hazard	Station 7	`d1_canals_06`
	APC garage	`d1_canals_07`
	Gate 5	`d1_canals_08`
	Canals	`d1_canals_09`, `d1_canals_10`, `d1_canals_11`, `d1_canals_12`, `d1_canals_13`
Black Mesa East	Black Mesa East	`d1_eli_01`, `d1_eli_02`
"We Don't Go To Ravenholm..."	Ravenholm	`d1_town_01`, `d1_town_01a`, `d1_town_02`, `d1_town_03`, `d1_town_02`, `d1_town_02a`, `d1_town_04`, `d1_town_05`
Highway 17	Shorepoint Base	`d2_coast_01`
	New Little Odessa	`d2_coast_03`
	Dock 137	`d2_coast_04`
	Petroleum Station	`d2_coast_05`
	Bridge Point	`d2_coast_07`, `d2_coast_08`, `d2_coast_07`
Sandtraps	Coast	`d2_coast_09`
	Lighthouse Point	`d2_coast_10`
	Vortigaunt Camp	`d2_coast_11`
	Coast	`d2_coast_12`
Nova Prospekt	Nova Prospekt	`d2_prison_01`, `d2_prison_02`, `d2_prison_03`, `d2_prison_04`, `d2_prison_05`
Entanglement	Depot	`d2_prison_06`, `d2_prison_07`, `d2_prison_08`
Anticitizen One	Kleiner's Lab	`d3_c17_01`, `d3_c17_02`
Anticitizen One	City 17	`d3_c17_03`, `d3_c17_04`, `d3_c17_05`, `d3_c17_06a`, `d3_c17_06b`, `d3_c17_07`, `d3_c17_08`
"Follow Freeman!"	Overwatch Nexus	`d3_c17_09`, `d3_c17_10a`, `d3_c17_10b`, `d3_c17_11`, `d3_c17_12`, `d3_c17_12b`, `d3_c17_13`,
Our Benefactors	Citadel	`d3_citadel_01`, `d3_citadel_02`, `d3_citadel_03`, `d3_citadel_04`, `d3_citadel_05`,
Dark Energy	Citadel	`d3_breen_01`

Half-Life 2: Lost Coast[edit]

Main location: St. Olga

Chapter	Location	Map(s)
Lost Coast	St. Olga	`d2_lostcoast`

Half-Life 2: Episode One[edit]

Main location: City 17

Chapter	Location	Map(s)
Undue Alarm	Citadel	`ep1_citadel_00`, `ep1_citadel_01`, `ep1_citadel_02`, `ep1_citadel_02b`
Direct Intervention	Citadel Core	`ep1_citadel_03`
Direct Intervention	Citadel	`ep1_citadel_04`
Lowlife	City 17 Underground	`ep1_c17_00`, `ep1_c17_00a`
Urban Flight	Hospital	`ep1_c17_01`, `ep1_c17_01a`, `ep1_c17_02`, `ep1_c17_02b`, `ep1_c17_02a`
Exit 17	Technical Trainstation	`ep1_c17_05`, `ep1_c17_06`

Half-Life 2: Episode Two[edit]

Main location: The Outlands

Chapter	Location	Map(s)
To the White Forest	Victory Mine	`ep2_outland_01`, `ep2_outland_01a`
This Vortal Coil		`ep2_outland_02`, `ep2_outland_03`, `ep2_outland_04`
Freeman Pontifex		`ep2_outland_05`, `ep2_outland_06`
Riding Shotgun	Radio Tower settlement	`ep2_outland_06a`
	The Outlands	`ep2_outland_07`
	Station 21	`ep2_outland_08`
Under the Radar	Station 21	`ep2_outland_09`
	White Forest Inn	`ep2_outland_10`,
	The Outlands	`ep2_outland_10a`
Our Mutual Fiend	White Forest	`ep2_outland_11`, `ep2_outland_11a`, `ep2_outland_11b`, `ep2_outland_12`
T-Minus One	White Forest	`ep2_outland_12a`

Half-Life: Alyx[edit]

Main locations: City 17, Quarantine Zone

Chapter	Location	Map(s)
Entanglement	Alyx's Hideout	`a1_intro_world`
Entanglement	Russell's Lab	`a1_intro_world_2`
The Quarantine Zone	Quarantine Zone	`a2_quarantine_entrance`
	Metro Area	`a2_pistol`
	Vortigaunt Hideout	`a2_hideout`
Is Or Will Be	Drainage Tunnels	`a2_headcrabs_tunnel`, `a2_drainage`
Is Or Will Be	Fairview Junction	`a2_train_yard`
Superweapon	Terminal Gardens	`a3_station_street`
The Northern Star	Northern Star	`a3_hotel_lobby_basement`, `a3_hotel_underground_pit`, `a3_hotel_interior_rooftop`, `a3_hotel_street`
Arms Race	Holden Company Processing Plant	`a3_c17_processing_plant`
Jeff	Golden Lion Distillery	`a3_distillery`
Captivity	Central Zoo	`a4_c17_zoo`
Revelations	Tanker Yard	`a4_c17_tanker_yard`
Breaking and Entering	Tanker Yard	`a4_c17_water_tower`
Breaking and Entering	Parking Garage	`a4_c17_parking_garage`
Point Extraction	Vault	`a5_vault`, `a5_ending`

Portal series[edit]

Portal[edit]

Main location: Aperture Science Enrichment Center

Chapter	Location	Map(s)
Test Chamber 00	Test Chamber 00	`testchmb_a_00`
	Test Chamber 01	`testchmb_a_00`
	Test Chamber 02	`testchmb_a_01`
	Test Chamber 03	`testchmb_a_01`
Test Chamber 04	Test Chamber 04	`testchmb_a_02`
	Test Chamber 05	`testchmb_a_02`
	Test Chamber 06	`testchmb_a_03`
	Test Chamber 07	`testchmb_a_03`
Test Chamber 08	Test Chamber 08	`testchmb_a_04`
Test Chamber 08	Test Chamber 09	`testchmb_a_05`
Test Chamber 10	Test Chamber 10	`testchmb_a_06`
	Test Chamber 11	`testchmb_a_07`
	Test Chamber 12	`testchmb_a_07`
Test Chamber 13	Test Chamber 13	`testchmb_a_08`
Test Chamber 14	Test Chamber 14	`testchmb_a_09`
Test Chamber 15	Test Chamber 15	`testchmb_a_10`
Test Chamber 16	Test Chamber 16	`testchmb_a_11`
Test Chamber 17	Test Chamber 17	`testchmb_a_13`
Test Chamber 18	Test Chamber 18	`testchmb_a_14`
Test Chamber 19	Test Chamber 19	`testchmb_a_15`
	Various locations deep inside Aperture Science Enrichment Center	`escape_00`
		`escape_01`
		`escape_02`

Portal 2[edit]

Main location: Aperture Science Enrichment Center

Chapter	Location	Map(s)
The Courtesy Call	Aperture Science Extended Relaxation Center	`sp_a1_intro1`
	GLaDOS' testing track (Portal)	`sp_a1_intro2`
		`sp_a1_intro3`
		`sp_a1_intro4`
		`sp_a1_intro5`
		`sp_a1_intro6`
		`sp_a1_intro7`
	Central AI Chamber	`sp_a1_wakeup`
	Incinerator Room	`sp_a2_intro`
The Cold Boot	Test Chamber 01	`sp_a2_laser_intro`
	Test Chamber 02	`sp_a2_laser_stairs`
	Test Chamber 03	`sp_a2_dual_lasers`
	Test Chamber 04	`sp_a2_laser_over_goo`
	Test Chamber 05	`sp_a2_catapult_intro`
	Test Chamber 06	`sp_a2_trust_fling`
	Test Chamber 07	`sp_a2_pit_flings`
	Test Chamber 08	`sp_a2_fizzler_intro`
The Return	Test Chamber 09	`sp_a2_sphere_peek`
	Test Chamber 10	`sp_a2_ricochet`
	Test Chamber 11	`sp_a2_bridge_intro`
	Test Chamber 12	`sp_a2_bridge_the_gap`
	Test Chamber 13	`sp_a2_turret_intro`
	Test Chamber 14	`sp_a2_laser_relays`
	Test Chamber 15	`sp_a2_turret_blocker`
	Test Chamber 16	`sp_a2_laser_vs_turret`
	Test Chamber 17	`sp_a2_pull_the_rug`
The Surprise	Test Chamber 18	`sp_a2_column_blocker`
	Test Chamber 19	`sp_a2_laser_chaining`
	Test Chamber 20	`sp_a2_triple_laser`
	Test Chamber 21	`sp_a2_bts1`
	-	`sp_a2_bts2`
The Escape	Turret Manufacturing	`sp_a2_bts3`
	Employee Daycare Center	`sp_a2_bts4`
	Neurotoxin Generator	`sp_a2_bts5`
	Aperture Science Pipe Network	`sp_a2_bts6`
	Central AI Chamber	`sp_a2_core`
The Fall	-	`sp_a3_00`
	Test Shaft 09	`sp_a3_01`
		`sp_a3_03`
		`sp_a3_jump_intro`
		`sp_a3_bomb_flings`
		`sp_a3_crazy_box`
		`sp_a3_transition01`
The Reunion		`sp_a3_speed_ramp`
		`sp_a3_speed_flings`
		`sp_a3_portal_intro`
		`sp_a3_end`
The Itch	"Self-made" Chamber	`sp_a4_intro`
	Wheatley's Test Chamber 01	`sp_a4_tb_intro`
	Wheatley's Test Chamber 02	`sp_a4_tb_trust_drop`
	Wheatley's Test Chamber 03	`sp_a4_tb_wall_button`
	Wheatley's Test Chamber 04	`sp_a4_tb_polarity`
	Wheatley's Test Chamber 05	`sp_a4_tb_catch`
	Wheatley's Test Chamber 06	`sp_a4_stop_the_box`
	Wheatley's Test Chamber 11	`sp_a4_laser_catapult`
	Wheatley's Test Chamber 12	`sp_a4_laser_platform`
	Wheatley's Test Chamber 15	`sp_a4_speed_tb_catch`
	Wheatley's Test Chamber 16	`sp_a4_jump_polarity`
The Part Where He Kills You	Central AI Chamber	`sp_a4_finale1`
	Maintenance areas	`sp_a4_finale2`
	Maintenance areas	`sp_a4_finale3`
	Central AI Chamber	`sp_a4_finale4`
	Moon
	Outside

Locations
Aperture Science	Borealis · Central AI Chamber · Employee Daycare Center · Enrichment Center · Enrichment Shafts: Co-op Test Shaft / Test Shaft 09 · Extended Relaxation Annex · Extended Relaxation Center · Hub · Incinerator Room · Neurotoxin Generator · Robot Rehabilitation and Wellness Center · Section N Robotic Associate Construction Annex · Storage Annex · Testing tracks: GLaDOS' testing track (Portal) / GLaDOS' testing track (Portal 2) / Wheatley's testing track / Cooperative Testing Courses · Turret Manufacturing · Universes
Black Mesa	Air Control · Advanced Biological Research Lab · Alien Quarantine Labs · Area 8 Topside Dormitories · Biodome Complex · Biological Waste Processing Plant · Black Mesa desert · Black Mesa Research Facility · Black Mesa Sectors (Sector A / Sector B / Sector C / Sector D / Sector E / Sector F / Sector G) · Black Mesa Transit System · Central Transit Hub · Freight Yard · Gamma Labs · Level 3 Dormitories · Medical Lab · Minor locations · Satellite Communications Center · Section A-17 Prototype Labs · Topside Motorpool · Training Facility · Waste Processing Area 3
Combine	APC garage · Citadel (Design evolution) · Citadel Core · City 17 · City 17 Trainstation · Combine City · Combine Overworld · Depot · Fairview Junction · Gate 5 · Nova Prospekt · Overwatch Nexus · Quarantine Zone · Technical Trainstation · Vault
Quarantine Zone	Central Zoo · City 17 Metro (Fairview Junction · Metro Area · Terminal Gardens) · Drainage Tunnels · Golden Lion Distillery · Holden Company Processing Plant · Northern Star · Parking Garage · Tanker Yard · Vault · Vortigaunt Hideout
Resistance	Alyx's Hideout · Black Mesa East · Bridge Point · Dock 137 · Kleiner's Lab · Lighthouse Point · New Little Odessa · Radio Tower settlement · Ravenholm · Russell's Lab · Shorepoint Base · Station 21 · Underground Railroad (Station 1 · Station 6 · Station 7) · Victory Mine · Vortigaunt Camp · Vortigaunt Hideout · White Forest · The White Forest Inn
Xen	The Mines · Xen
Other	*Locations in the Half-Life* and Portal universe** · Canals · City 17 Underground · The Coast · Earth · Hospital · Moon · The Outlands · Petroleum Station · Santego Military Base · The Wasteland
Black Mesa (cut)	Alien Research Lab · Central Transit Hub · Communications Center · The Portal Device · Reactor Lab · The Security Complex · X-Lab
Combine (cut)	Air Exchange · Combine Factories · Manhack Arcade · Skyscraper · Vance Headquarters · Weather Control
Resistance (cut)	Borealis · Kraken Base · Vance Headquarters
Other (cut)	Arctic regions · Haven · Riverbed · St. Olga

Locations in the Half-Life and Portal universe

Contents

Half-Life and its expansions[edit]

Half-Life[edit]

Half-Life: Opposing Force[edit]

Half-Life: Blue Shift[edit]

Half-Life: Decay[edit]

Half-Life 2 and its Episodes[edit]

Half-Life 2[edit]

Half-Life 2: Lost Coast[edit]

Half-Life 2: Episode One[edit]

Half-Life 2: Episode Two[edit]

Half-Life: Alyx[edit]

Portal series[edit]

Portal[edit]

Portal 2[edit]

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