I have several 3D Game Engine , include Torque , Unity3D , Visual3D.Net ,DB Pro,GameStudio , etc ....
but how can I make like this MMO-Game http://zt.lager.com.tw/zt/new\_guide/zt\_ng\_screen.shtml
the showcase is so poor and old ...
what old engine can easily and easily make like this game ???
It won't be easy with any engine. I think you got best chances if you go with Visual3d.net (http://www.visual3d.net/game-engine)). I tried it once, it is the only tool that let's you create big worlds that would fit an MMO, though the networking component of it is currently gone, but it is said to come back soon.
theres some pretty good art there, but you can make a 2d game piece of cake with any language, whats up man?
So, to understand the OP, you want to make a 2.5D isometric fantasy MMO? Well, there is no really good, complete engine for an MMO. Many come with major trade-offs.
There are three general avenues:
1) Flash-based: there are a few isometric engines out there for this kind of need. For example, look at OpenSpace to get an idea of what I am talking about.
2) Render-engine-plus-grunt-work: Grab some libraries/engines to headstart your work, and code the layer that sits above it all and coordinates it. The engine typically mentioned is FIFE; there are many others. Add a networking library and such, code the client, and you are off to the races.
3) MMO Kits: With an environment like Realmcrafter or Multiverse, you can get up and running faster, but many of those "kits" have questionable scalability usually due to poor coding.
PS: Hmm, looks like we have a Visual3D spam storm again. I was away for about two weeks and I am noticing a slew of newbie posters cheerleading Visual3D all of a sudden.
PPS: I love the "I recommend Visual3D for your MMO, even though networking sucks donkeys" statement. Would good, scalable networking be central to an MMO?
Any engine can probably make what you want, but making an MMO requires a fair bit of skill. It's much better to practice on smaller projects until you know exactly what is involved.