Please use my trade link here .
Don't offer gems or trading cards.
If you don't know what to offer then you might find a hint in my wishlist.

For trade:
Soma
Awesomenauts
Frozen Synapse
Magicka
Garry's Mod
FEZ
Mafia 2
The Darkness 2
BioShock
BioShock 2
GRID™
GRID 2
Deus Ex: Human Revolution - Director's Cut
Hitman: Absolution
Insurgency
Alien: Isolation
I am Bread
Spelunky
Call of Duty®: Black Ops III - Multiplayer Starter Edition
WWE 2K16
Stardew Valley
Broken Age
Titan Souls