I haven't followed Dungeon Craft in awhile, but last time I checked it seemed as if development of it slowed to a crawl and no one was building decent modules for it.
At this point, you could probably build anything in Dungeon Craft that you could build in FRUA, and you'd have more options, better resolutions, unlimited text space, the ability to create items and such, etc. Why there isn't a bigger community around Dungeon Craft, I really can't say. It deserves better. As far as I know, it's frequently updated.
IMO, you can never underestimate the importance of aesthetics in the adoption of turnkey game development software. If the early RPG Maker suites hadn't had very strong SNES-era aesthetics, they never would've taken off. It's not even an answer to say that you can manage all of it under the hood (assuming you can). One look at the screenshots and my interest vanishes.
Obviously the low hanging fruit would be the encounters:
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But the world map, too, while perfectly fine in Dungeon Craft has an amateurish feel, despite the higher resolution allowing more detail:
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And while the world map had too many clashing colors, the combat is boring in comparison to FRUA because of the plainness of the designs:
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Even the exploration, which is where FRUA was at its most plain, has a certain charm that is lacking in Dungeon Craft:
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By the way, these aren't even cherry picking the greatest hits from FRUA, it's just me trying to find analogues to the Dungeon Craft screenshots on MobyGames.
To be clear, I'm not saying there's any wisdom or justice in this, but the thing with FRUA is that the instant you loaded it up, you could make phenomenal looking games similar to games you were going out and buying just a few years earlier. Dungeon Craft doesn't stir any excitement. Even today, using FRUA means making authentic Gold Box era games, truly retro -- Dungeon Craft can't accomplish that, you'd just end up making a FRUA-like game but with weirdly high res and less aesthetic graphics. I'm sure it's vastly better to develop with (FRUA used to drive me crazy back when I made modules), but you probably can't even get enough people over the initial hurdle to have anyone to make or play modules.
