The pack contains: Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life Deathmatch: Source, Half-Life 2: Episode One
A copy is not interchangeable, they use a mediator chosen by the buyer, but will of this community of mediators, which are used before and that will be safe: http://steamcommunity.com/groups/mediadores
The pack contains: Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life Deathmatch: Source, Half-Life 2: Episode One
A copy is not interchangeable, they use a mediator chosen by the buyer, but will of this community of mediators, which are used before and that will be safe: http://steamcommunity.com/groups/mediadores
Sorry for me bad english, im from Argentina.