Oh I didn't say anything about massively multiplayer online games.
Usually, when people reply to you and don't state otherwise, you're going to assume their reply is actually addressed at what you were talking about, especially if they quoted it. You should make yourself more clear.
In any case, you misinterpreted what I said. I said a 3d environment, not a 3d graphical engine.
Perhaps I haven't, and you're additionally blurring the discussion with pointless arguments and distinctions. A '3D environment' is impossible to accomplish in BYOND all the same, obviously. You can make your 2D environment look slightly more 3-dimensional by employing some techniques, but it is not 3D, nonetheless, but a relatively poor imitation.
I still believe that a 3d graphical engine is possible in BYOND, however.
...Both '3d graphical engine' and '3d environment' are impossible to accomplish in BYOND, and any other different name you may wish to use for it. I don't know why you think you can argue this (and you shouldn't, since this is a useless argument in an irrelevant topic), considering it is well-known common BYOND knowledge, which the BYOND Staff backs up as well. Looks like you do not actually fully understand the terms you're playing with and don't know what they entail.
I'm not arguing against BYOND's capabilities as far as other game genres go. I'm primarily an action games developer. I'm just saying that BYOND isn't as incapable as you make it out to be. Have faith in the development suite, damn.
I'm well-aware of BYOND's powerful capabilities. However, don't delude yourself and exaggerate them, damn. =P BYOND isn't nearly powerful enough to handle 3D environments, even in single player. Among many other limits that cause this, it is simply unable to render 3D, for one.
Besides, using a game suite rather than building your own is generally unrecommended for a project as ambitious and big as a MMORPG. Well.... ESPECIALLY a suite that was definitely not meant to be used for one. Neither for 3D games.
And here's a separate question for you. What the heck is Massively supposed to mean anyway? What's the definition of Massive in MMORPG?
It's Massively Multiplayer, already meaning a real MMORPG is impossible to pull off in BYOND, and that's just one property of MMORPGs which happens to be in the name/actual definition, but they have more common characteristics, a 3D environment, engine, or what-have-you, another one of them.
If you're interested in common information, it is customary to search first. Wikipedia is a good start.
I've played Diablo II and I considered/consider it a MMORPG.