Merc Envy
You have found the way to Envy on Merc:
Abandoned Reality - Features information about the background story and playing hints.
Ad Hesperia - Provides information on history, background, features, as well as builder docs.
Adventures for Ancient Wisdom - Features general game information, newbie help, and a player gallery.
Adventures in Stormgate - Contains maps, information on classes and races, and faqs about the mud.
Areth - Features general game information, newbie help, a background story, and technical info.
Continents Mud - Features general game information, help files, online maps, and building docs.
DragonStone - A medieval themed mud offering 16 races, 14 classes, and multiclassing. Currently has an excess of 9000 rooms.
Dreams - Detailed information about characters, players and areas. Provides a building guide, player biographies and resources.
GreedMud - Offers a MUD base for download, based on the Envy source code. Help build the largest human-edited directory on the web.