The Realm is an MMORPG originally made in the early '90s, published by Sierra Online. It changed hands several times, but is still in operation. It's currently offered in both the pay-to-play and free-to-play varieties, namely, Mabon's Gamble and Despothes Grove -- both of which can be found on the relevant website.
The main feature, here, is the map. This took some work on my part. Some other stuff follows that's not quite as helpful.