Try The Grid! It is a text-only strategy multiplayer game you play by actually typing in commands and fantasizing you are logged in a BBS. It does feel quite a bit like a boardgame and generally has you capturing squares, building farms, hiring wizards, stealing from your neighbors, inciting revolutions, forming alliances and even attempting to bless everyone, while fighting to gather all the resources a powerful master of the grid would need.
The Grid - A Text-Based Multi-Player Online Strategy Game