Half-Life series

See also:  Portal series

Half-Life is a series of predominantly single-player FPS games, and the first game series & IP from Valve.

Wiki Note:On this wiki, are collectively referred to as the Half-Life 1 series, and are collectively referred to as the Half-Life 2 series.

Valve titles

The Half-Life series consists of the following Valve-developed titles:

• Half-Life ()
  • Half-Life: Source ()
  • Half-Life Deathmatch: Source ()
• Half-Life: Uplink ()
• Half-Life 2 ()
• Half-Life 2: Deathmatch ()
• Half-Life 2: Lost Coast ()
• Half-Life 2: Episode One ()
• Half-Life 2: Episode Two ()
• Half-Life: Alyx ()

Licensed titles

The following titles developed either primarily or entirely by external studios, but are officially licensed by Valve:

Canon

These titles are canon in Half-Life universe.

• Half-Life: Opposing Force ()
• Half-Life: Blue Shift ()
• Half-Life: Decay ()

Non-canon

These titles are non-canon in Half-Life universe.

• Codename: Gordon ()
• Half-Life 2: Survivor (, Arcade)

Related titles

Additionally, the following titles are tangentially connected to the Half-Life franchise:

• Team Fortress Classic ()
• Half-Life: Counter-Strike ()
• Deathmatch Classic ()
• The Portal series ( and )
  • Both Portal and Portal 2 are set in the Half-Life universes, and are canon to Half-Life series.

Fangames

Main article:  Category:Half-Life series mods and fangames

There are also many mods and fangames which take place in the Half-Life franchise, such as Black Mesa, Entropy : Zero 2, and Hunt Down the Freeman.