http://en.wikipedia.org/wiki/Cyberlore_Studios
While it didn’t completely cease operations (just changed its name to Minerva), Northampton-based Cyberlore is no longer focusing on regular games.
Since 1992, they produced a whole number of expansion packs for games such as Warcraft, Heroes of Might and Magic and Mechwarrior, but due to collapse of their publisher Hip Games, they changed their name and decided to target corporate training market.
