[H] 2 tf2keys + 1 tour of duty ticket [W] offers

Natural Selection 2 Gift + Terraria

Assassin's Creed II Deluxe Edition - 2 keys

Don't Starve for 2 TF2 keys, or plenty more here.

Blade Symphony 2 keys, Trials Evolution Gold 2 Keys, Guacamelee Gold Edition 2 Keys, Spelunky 2 Keys

Any of these interest you: Batman AC, Batman AA, Natural Selection 2, Orcs Must Die (1+2), Sanctum (1+2) Mortal Kombat Kollection.

Defiance for 1 key?

Castle Crashers -- 1 key + 1 ticket.

Anything here?

Guns of Icarus Online - 1 key

Skullgirls

I have these games
You can select more for 2 keys+tour.
Also have Half Life 2 Episode 1 Holiday special gift (HL2 Lost Coast, Deathmatch, EP 1 in it)

Contagion gift - 2 key