Half-Life 2: Episode Two を購入する

The Orange Box を購入する

5 アイテムを同梱： Half-Life 2, Half-Life 2: Episode One, Half-Life 2: Episode Two, Team Fortress 2, Portal

Half-Life Complete を購入する

10 アイテムを同梱： Team Fortress Classic, Half-Life: Opposing Force, Half-Life, Half-Life: Blue Shift, Half-Life 2, Half-Life: Source, Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life 2: Episode One, Half-Life 2: Episode Two

Valve Complete Pack を購入する

24 アイテムを同梱： Counter-Strike, Team Fortress Classic, Day of Defeat, Deathmatch Classic, Half-Life: Opposing Force, Ricochet, Half-Life, Counter-Strike: Condition Zero, Half-Life: Blue Shift, Half-Life 2, Counter-Strike: Source, Half-Life: Source, Day of Defeat: Source, Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life 2: Episode One, Half-Life Deathmatch: Source, Left 4 Dead, Half-Life 2: Episode Two, Team Fortress 2, Portal, Left 4 Dead 2, Portal 2, Counter-Strike: Global Offensive

Half-Life 2 を購入する

Half-Life 2: Episode One を購入する