The Maze Runner by James Dashner

Thomas arrives in the Glade with no memories of his time before. But strangely, things are familiar: the gray walls, the maze, the Grievers with their poison and knives, the Changing, the grounds of the Glade. Somehow, Thomas knows he's the only one who can get everyone out of the Maze. The Maze that has contained them for over two years...

If you enjoyed The Hunger Games series by Suzanne Collins, you will love this book. It has the same plot of survival and leadership, but the circumstances and elements are entirely new and inventive. I highly recommend this one!