Dungeon Inquisitor

Dungeon Inquisitor is a create-your-own-dungeon MMO. You assume the role of an evil creature which lures humans into its dungeon.

Once captured, humans can be ransomed or interrogated to obtain valuable info (or, if you'd prefer, turned into demon soldiers). Players form alliances, try to attract more valuable human stock using various lures and taking over the human world with their legions of undead. The interface is text-only and takes some getting used to, but the actual game mechanics are unique and thrilling as one has to tinker around to find ways of getting stronger. Especially the interrogation part is a nice touch one would seldom encounter in similar titles.

Dungeon Inquisitor seems to be a small project and as such it suffers from a lack of players and from production issues like an interface bursting with copious amounts of text. Still, this dark adventure does a good job of immersing players with alliances, crusades and more.