Thief: The Master Thief

In Thief you have to prove your skills. Cheat on your opponents and don't get caught. Hide well, break into the vault or find the diamond in the museum. If you've stolen your loot, get out of here as soon as you can. Find secret passages and don't get lost! Find all treasures and steal what you can steal. Break out of prison. Improve your skills and become a master thief. What are you waiting for?

I wish you success!