Wargames

Adventurers Guild
Strategic roleplaying game of gladiatorial combat, fantasy adventuring, and wilderness exploration. Established 1990. Features 19 character races, free trial turn.
http://www.advguild.com/AGpage.html

Atlantis
Open-ended, multiplayer, computer moderated strategic fantasy game for any number of players.
http://www.arno-saxena.de/atlantis/atl_home.php

Eressea
Rule a group of heroes from one of a dozen races in the fantasy world of Eressea. Turn based strategy using the Magellan Client for graphical interface.
http://www.eressea.de/en/

Incubus Designs
Offer Serim Ral, a fantasy wargame. Includes rulebooks, details of current games, with associated forums and joining instructions. Company based in Loughborough, United Kingdom.
http://www.incubusdesigns.com/

The Seraph Chronicles: Realm Wars Log
Weblog with information on all threads and characters in the RealmWars multi-verse.
http://realmwars.blogspot.com

World of Kaomaris IV
Strategy conquest game featuring chat room, message boards, high score table, and championships.
http://www.kaomaris.com/