Depends on what you mean by "Dwarf fortress", I suppose - there have been a great many DF-likes, the current darling being Rimworld, and more are definitely in the pipeline (keep an eye out for Klei Entertainment's Oxygen Not Included, which tries to incorporate the "losing is fun" aspect).
Klei is one of my favourite studios. They are behind or have been involved in tons of great stuff. Mark of the Ninja, Don't Starve, great stuff indeed.
Edit: Klei Software -> Klei Entertainment