Description
A Psychic Odyssey Through the Minds of Misfits, Monsters, and Madmen.
This classic action/adventure platformer from acclaimed developers Double Fine Productions follows the story of a young psychic named Razputin. In his quest to join the Psychonauts--an elite group of international psychic secret agents--he breaks into their secret training facility: Whispering Rock Psychic Summer Camp. But this is no average psychic summer camp! A mysterious villain has kidnapped Raz's fellow campers and stolen their brains. Now he must use his psychic powers of Telekinesis, Levitation, and most of all his ability to project himself into the minds of others--to find the loose noodles and keep them from falling into the wrong hands. Fight mental demons! Uncover hidden memories! Sort emotional baggage! Explore the fantastic realm of the inner mind! Join the Psychonauts!
Steam 
Windows 
How to activate your Steam key?
1. Open your Steam client. (If you don't have a Steam Client, you can install from here https://store.steampowered.com/about/)
2. Sign in to your Steam account. (If you don't have a Steam Account, you can create from here https://store.steampowered.com/join/)
3. Click “ADD A GAME” button which is at the bottom of the Steam Client.
4. Now select "Activate a product on Steam..."
5. Write or copy-paste your Steam key which you purchased from Gamesforpc.
6. Now your game is in your library.
7. Find your game in your library, select and click install to start your download.