Both a historically accurate simulation and a fun game in one!
You can either wander the ship in an educational context, or you can play the heart pounding game, trying to change the (fictional) events that caused the boat to sink. Either way, you will be treated to detailed recreations of some of the most famous locations on the ship. I was surprised at the clarity of the graphics and the crispness of the sound.
The "game" is a point and click adventure reminiscent of early Sierra games (like Police Quest or King's Quest), so the pace is a little slower than traditional 3D games where you are interacting in a 3D environment.
If you like the Titanic, you really cannot put off picking up this game much longer. The experience is unique.