Super fun game, but I would not recommend it as a solo exploration.  The strength of this one lies in group play.  HIGHLY recommend playing this game in a room that can be made completely dark.  In my own playthroughs of this, I run it as a facilitator and use seasonal sound effects (think birds in spring, thunderstorms in summer, wind in winter) at a low volume to evoke the passage of time while the tomb is undisturbed.  In a completely dark room, this effect helps create the calm serenity of an undisturbed tomb.  An out-of-the-box thinking RPG and perfect as a palate cleanser between longer campaigns in other settings.