Game series Half-Life: Decay
Half-Life: Hostile Takeover
Expansion
Half-Life: Hostile Takeover
Half-Life Deathmatch: Source
Port
Half-Life Deathmatch: Source
Half-Life: Source
Remaster
Half-Life: Source
Half-Life: Decay
Standalone expansion
Half-Life: Decay
Half-Life: Uplink Half-Life: Uplink
Half-Life 2: Lost Coast Half-Life 2: Lost Coast
Half-Life: Blue Shift
Standalone expansion
Half-Life: Blue Shift
Half-Life: Alyx Half-Life: Alyx
Half-Life 2: Episode One
Standalone expansion
Half-Life 2: Episode One
Half-Life 2: Episode Two
Standalone expansion
Half-Life 2: Episode Two
Half-Life Half-Life
Half-Life 2 Half-Life 2
Half-Life: Opposing Force
Standalone expansion
Half-Life: Opposing Force
Half-Life 2: Episode Three Half-Life 2: Episode Three