osakit was mentioned before but i didnt tired it at that time,

i gave it a try and it works nice so far.

osakit is pretty nice. here is a osakit-a7 commerical demonstration using template project(10 mb download, seems like osakit pro version has streaming):

http://quadraxas.com/osakit/a7osakit.html

(idk why but if you want it to play in another browser,you have to run it once in IE.) updated. Hopefully, now works with other browsers, without running with ie first.

ontopic:
tgea and torque3d is nice, but gg fails in a lot of aspects.