Immersive fantasy role playing computer game. Richly detailed world in which you have free reign to pursue the whims of the character you have (most likely painstakingly) created from scratch. Though its D&D structure is exceedingly well worn aside from the Half Life series never have I been so transported to a world. And here the advantage over Half Life is the freedom. You can play as a pickpocket who one day gets bitten by a vampire and spirals down a path of murder and who gains such a bounty that you are a fugitive forced to flee from the mighty Imperial Guard to the countryside, or travel as a conjurer summoning skeletons and then turning invisible to fend off bandits and beasts. Sure there's a main quest, but other than a few great moments, most of the fun is in exploring.