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Emerald Thief trains visual perception, logical reasoning, and reaction time. These brain skills are useful during any activity where problem solving and quick reflexes are needed.
To begin, click the Small, Medium, or Large link above. This opens the game in a pop-up window. After the game loads, click the "PLAY" button on the lower right of the game.
Try to steal the valuable emerald from the museum. Avoid detection while locating keys and then the emerald itself. If any of the security devices touch you, it's game over!
If you like this game, you might also want to try the Techno Maze on my free online maze page.
| HOW TO PLAY. Carefully check the map of the museum. To complete the game, you must reach the Emerald Chamber and steal the precious jewel. Collect keys to open the closed doors. The color of the key matches the color of the door. The precious emerald is, of course, green. Steal the emerald and escape from the building before the cops arrive. |
Use the Arrow keys to move. Stay alert and avoid the laser beams, robots, and cameras to avoid being caught.
HINT: Check the map if you get lost. Pay attention to special instructions that appear in the lower left corner.
I hope you enjoyed playing Emerald Thief!
![]() | FOR BEST RESULTS: Emerald Thief is a lot of fun, but it is limited. To really improve your brain, join the Lumosity brain training service. I use Lumosity every day, and it works. |
A Lumosity session takes about 15 minutes per day. It is an effective, enjoyable way to keep your brain sharp.
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How to Sign Up. First, go to the Lumosity website and see for yourself what it's all about. When you are ready to sign up for the free trial, click the Create Account link at the top of the page to get started.
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