[W]dota2/tf2 key [H] Serious Sam HD:first, Edna & Harvey: Harvey's New Eyes, Bastion

Serious Sam HD:first encounter 1 key

Edna & Harvey: Harvey's New Eyes - 2 keys

Bastion 2 keys

natural selection 3 keys

Sid Meier's Civilization IV - 1 key

They are all steam gifts