Deimos Anomaly has recently released his remake of E1M1 in Doom 3's dark, moody and ultra-realistic style. This map is some sort of crossover between the original Doom's "Hangar" and Doom 3's "Mars City". It's mostly a remake of the first one, with some parts of the Doom 3 map implemented along the level. And of course, some new areas as well. Expect a lot of ambient lights, new textures and a mixture of nostalgia and modern feelings combined in one map. The development thread with screenshots, history and the download link can be found in the ZDoom development thread, it's definitely worth the download.