NBack game is an implementation of an N-back task where the player needs to match sound and selected position N times ago. It has been proved many times in many types of research that regular playing this type of games help to improve short and long term memory.

The game offers 25 rounds with different level of difficulty, you need to decide if the sound or/and position were the same N rounds ago, at the end of the game you will see a summary board with your results.

When you complete a level successfully you unlock the next level.

If you do not how to play you will find a tutorial explaining how to play with examples.