The listing, Calcu-Late - Steam Key has ended.
Calcu-Late is a story about a boy named James that needs to participate in a godly Olympics tournament as a representative for the goddess of mathematics, Seshat. The tournament will grant the participant a wish that they stated before the tournament starts.
Here is a steam copy for Calcu-Late, for more informations , please check :
http://store.steampowered.com/app/449200/CalcuLate/
All you need to do after receiving the key is :
1- Open your steam and sign-in.
2- Go to the games menu in the top of the screen you will find "Activate a steam product".
3- Follow the instructions then enter the key to activate the game.
4- Install the game.
5- Enjoy it.
Please note that if you use the key and activate the game through steam, you can't ask for a refund.