It's probably been asked around before, but I'm against necroing, I want them alive. ;o)

So wich game engine has been decided, or are you still considering wich one you should use?

If you still consider it, please take a look on what others have to say about the engines before you decide wich one you are going to use. There are some pretty horrible examples where the developers picked engines based only on how easy it was to add stuff in the game world. But then when the game launched the game would have terrible performance with jerky movement and/or movement, absurb amount of time to change from one map to another and so on. The game engine actually have such big impact that several games sold 800k+ copies, but once the free 30days was spent they only had 200k+ subscribers, and falling lower and lower each month after that.

Please dont do this to Fallout Online, the hype is already huge, now its up to you guys to show the other companies that a game with big hype can still be a success 6months after the release.
And dont forget, endgame content needs the most love, the rest is just a transportation to it. ;o)

http://en.wikipedia.org/wiki/Earthrise_(video_game)

same engine, search topics, it have been answered a few times, and read _this_.