The Immortal is an isometric action-adventure game.
Your old mentor Mordamir has disappeared. Probably kidnapped. You're not too sure where he might be, but a dungeon is always a good place to look, so you seek out the nearest one and plunge into its depths. Beware: 8 levels of isometric death await.
The Immortal is the prototype of a trial-and-error game. Progress is made by encountering a hazard, dying, solving the problem, encountering the next hazard. To solve a level, you have to know its traps and their patterns by heart. As frustrating as this may sound (it is), The Immortal quite cleverly balances annoyance with curiosity and graphical rewards.