The listing, Trine 3: The Artifacts of Power Steam Key has ended.
http://store.steampowered.com/app/319910/
This auction is for a Steam Key of Trine 3: The Artifacts of Power
About This Game
Experience a fairytale world of breathtaking sceneries and face a myriad of physics-based puzzles, wonderful contraptions, dangerous foes and enchanting creatures.
Trine 3: The Artifacts of Power is a platforming game of action, puzzles and adventure, and the sequel to the award winning Trine and Trine 2. Reunite with the familiar heroes - Pontius the Knight, Amadeus the Wizard and Zoya the Thief in an all-new adventure, now for the first time in full 3D!
Playable in single-player or in co-up with up to three players, both locally or online.