The history of D&D games is mainly shaped by by very few publishers and developers. Some of them went bust. Part coincidence, part licensing policies of the D&D holders (or else there would have been more games/publishers involved), part because it was all comparably niche. Even Baldur's Gate and Neverwinter Nights sold no more than ~2 million units. Whilst very profitable, had any of those games branded as D&D come with an inbuilt guaranteed audience of blockbuster like calibre, then life would have likely been easier for each dev/publisher involved.
Still, there was SSI who under Mindscape didn't reknew their D&D licenses (but for which it had been profitable). Then along came Interplay, and Black Isle / Bioware brought in the profits, the problem likewise was someplace else. Troika and n-space each did a single game in their tactical dungeon crawler Temple Of Elemental Evil and Sword Coast legends respectively, and that was that. On the online front, technically Turbine still exists, so does Cryptic.
Last edited by Sven_; 12/11/20 03:45 AM.