| Awards | Changelog | Cheats | Codes Codex | Compatibility | Covers | Credits | DLC | Help Localization | Manifest | Modding | Patches | Ratings Reviews | Screenshots | Soundtrack Videos | Walkthrough | |
|---|---|
| Achievements GOG | In-Game | Origin | PlayStation Trophies | Retro Steam | Xbox Live |
| Cheat Name | Button Combination |
|---|---|
| Alien Mode: |
|
| Bonus levels: |
|
| Infinite Ammo: |
|
| Invincibility: |
|
| Invisibility: |
|
| Slow motion: |
|
| Xen gravity: |
|
| Half-Life series | Half-Life: Uplink · Half-Life [Blue Shift · Counter-Strike · Deathmatch: Source · Decay · Opposing Force · Source] · Half-Life 2 [Deathmatch · Episode One · Episode Two · Lost Coast · Survivor] · Half-Life: Alyx |  |
|---|---|---|
| Portal series | ||
| Other games & releases | ||
| Information and fiction | Characters (Gordon Freeman · Alyx Vance · G-Man · GLaDOS) · Creatures (Combine · Headcrab · Vortigaunt) · Gravity gun · Locations | |
| Related articles | Concerned · Half-Life: Escape from City 17 · Half-Life 2: Raising the Bar · "Still Alive" · Narbacular Drop · Tag: The Power of Paint | |
| Mods | ||