GTA Complete Pack (GTA 3 + San Andreas + GTA 4 + Episodes from Liberty City + Vice City old audio (this game had been removed for some from Steam a few months ago, then it returned, but about 10 songs were removed due to copyright issues, but i had had bought this pack prior to removal, so this pack has Vice City with full soundtrack)) = 8 keys. Also, if you don't trust me, i can provide the solid proof that it's really old version of Vice City in this pack.
TF2 items: Fists of Steel + Razorback + Rescue Ranger (all at once) = 1 key
Grid = 3 keys
GTA Complete Pack (GTA 3 + San Andreas + GTA 4 + Episodes from Liberty City + Vice City old audio (this game had been removed for some from Steam a few months ago, then it returned, but about 10 songs were removed due to copyright issues, but i had had bought this pack prior to removal, so this pack has Vice City with full soundtrack)) = 8 keys. Also, if you don't trust me, i can provide the solid proof that it's really old version of Vice City in this pack.
TF2 items: Fists of Steel + Razorback + Rescue Ranger (all at once) = 1 key