It's a beautiful mystery game of sorts with lots of puzzles to solve and figure out how to get around on different areas and times. If you get stuck and can't figure out what to do next then there are walkthroughs on line to help you. Google Myst and you'll get an idea of the game.
It's a great game. I had already played it on my pc and this is really similar. Just have to stop playing my 3DS or any hand held game because of arthritis. :(