After a bad party last weekend, you classmate got in hospital. He will miss the next week from college and ask you to bring him stuff to study so he won't remain behind. But for this he will also need some stuff from his apartment. So he gave you a key and asked you to go at his apartment to bring him what he needs, as he is living alone. No problem you said! Then you went to his apartment, searched for the stuff which he needs and wanted to leave. But wait where is the key? You lost the key which opens the entrance door. Now this is a real problem. You will have to explore the apartment and find the key. Best of luck!
Walkthrough for The Lost Key