Bas-Lag is the great world of some novels from the British author China Miéville. Does anyone know any RPG based on this world?
Dragon Magazine issue #352 detailed Bas-Lag for D&D 3.5.
The RPG publisher Adamant Entertainment has had the license for Tales of New Crobuzon since 2008. According to owner Gareth-Michael Skarka, the book is due for release in fall of 2011, and it will use a variant of Chaosium's Basic Roleplaying (BRP) system. No updates have been posted for years and the owner has been banned from the forum, however. Adamant's official website gives no release date for the game, but has an advertisement for hire for freelance artists interested in producing interior art for the book, indicating it is fairly well along the production process at this point and has yet to be dropped.