A

• [+] Aperture Science locations‎ (1 C, 18 P)
• [+] Arctic locations‎ (1 C, 4 P)

B

• [+] Black Mesa Research Facility locations‎ (1 C, 16 P)

C

• [+] City 17 locations‎ (2 C, 15 P)
• [×] Combine locations‎ (27 P)

C cont.

• [+] Cut locations‎ (1 C, 12 P)

L

• [+] Locations images‎ (10 C)

O

• [×] The Outlands locations‎ (4 P)

R

• [×] Resistance locations‎ (21 P)

T

• [×] Towns and cities‎ (15 P)

T cont.

• [+] Trainstations‎ (1 C, 4 P)

W

• [+] The Wasteland locations‎ (3 C, 8 P)
• [+] Worlds‎ (1 C, 4 P)

,

• Junkyard

A

• Advanced Biological Research Lab
• Air Exchange
• Alien Quarantine Labs
• Alyx's cache
• APC garage
• Aperture Science Enrichment Center
• Aperture Science Extended Relaxation Annex
• Aperture Science Extended Relaxation Center
• Area 8 Topside Dormitories
• Attack on White Forest

B

• Biological Waste Processing Plant
• Black Mesa Air Control
• Black Mesa desert
• Black Mesa East
• Black Mesa Medical Lab
• Black Mesa Research Facility
• Black Mesa South Access
• Black Mesa Transit System
• Borealis
• Borealis (cut location)
• Bridge Point

C

• Canals
• Central AI Chamber
• Citadel
• Citadel Core
• City 11
• City 12
• City 13
• City 14
• City 15
• City 16
• City 17
• City 17 Trainstation
• City 17 Underground
• City 24

C cont.

• City 27
• City 40
• City 49
• City 8
• Co-op Test Shaft
• The Coast
• Combine Factories
• Combine Overworld
• Cooperative Testing Courses

D

• Depot
• Dock 137

E

• Earth
• Employee Daycare Center
• Enrichment Shafts

F

• Freight Yard

G

• Gamma Labs
• Gate 5
• GLaDOS' testing track (Portal 2)
• GLaDOS' testing track (Portal)

H

• Hospital
• Hub

I

• Incinerator Room

K

• Kleiner's Lab
• Kraken Base

L

• Level 3 Dormitories
• Lighthouse Point
• Template:Location Infobox
• Template:Locations
• Locations in the Half-Life universe

M

• Manhack Arcade
• Moon

N

• Neurotoxin Generator
• New Little Odessa
• Nova Prospekt

O

• Overwatch Nexus

P

• Petroleum Station

R

• Ravenholm

S

• Santego Military Base
• Section A-17 Prototype Labs
• Sector A Training Facility
• Sector B Coolant Reserve
• Sector C Test Labs
• Sector D Administration
• Sector E Biodome Complex
• Sector F Lambda Complex
• Sector G Hydro Electric
• Shorepoint Base
• Skyscraper
• St. Olga
• Station 12
• Station 6
• Station 7
• Station 8
• Station 9

T

• Technical Trainstation
• Test Shaft 09
• The Outlands
• Topside Motorpool
• Turret Manufacturing

U

• Underground Railroad

V

• Vance Headquarters
• Victory Mine
• Vortigaunt Camp

W

• Waste Processing Area 3
• The Wasteland
• Weather Control
• Wheatley's testing track
• White Forest
• The White Forest Inn

X

• Xen