Why yes, D&D may not be an easy system to implement in a game, but it is also an amazingly complex system thats yet very well balanced. Thanks to now 50 years of different people, and some very talented people among them, working on this system.
This would be a lot of work to have either way, and picking up D&D, you get it just so.
And besides, D&D5 is easier to do on the computer than D&D3, which in turn is much easier to do than AD&D (aka D&D2).
And all Bioware had for BG1 and BG2 was AD&D to work with.
I am far from religious about games using D&D, however I absolutely love the enormous flexibility that comes in regards to character creation if you have a system as complex as D&D.
The only games I know that can compete with D&D in this regards can be found in the MMORPG sphere. If developers get years of data and finetuning to perfect a rulesystem, some true rulesystem gems can be created.
In this regard I remember very fondly my favorite MMORPG of all time, Vanguard: Saga of Heroes. As many different people told me back when VSoH was running, Sigil had managed to "make classes right".
So if someone would want to base their game on the VSoH system, or on an evolution inspired on the VSoH system, I'd be super enthusiastic about that.
As I understand it, WoW is also pretty good. Personally I have a hard time with the limitations of WoW though. Seriously ? You have to stand still while spellcasting ? Yikes. In Vanguard I could move at full speed backwards if levitating ! And move at half speed when spellcasting on the ground. Much more realistic. Why wouldnt you be able to move at all when spellcasting ? That just makes no sense to me.
Well, also in WoW you can completely reskill your character on the fly. Yikes. If you want to base or allow to inspire your rulesystem on WoW, please dont allow that one.
Another reason I personally never touched WoW. There are many more, by the way. But the ideas of the rulesystem havent been bad.
