I have steam gift what Includes 6 items: Half-Life 2, Half-Life 2: Deathmatch, Half-Life 2: Lost Coast, Half-Life Deathmatch: Source, Half-Life 2: Episode One, Half-Life 2: Episode Two so winner will get them all
You can enter even if you have most of them to complete collection.

I will send gift to winner by adding them to steam or by sending gift to email if winner does not accept my friend request