So, i`ve tried to make something minecraft like, but in 3D unlimited world, and now, try an idea to make it online.
Actually server make a hardest part of job (generate and in future light up) land and keep track of user`s changes.

At the moment i testing client-server part with just generated land, w/o extra details.

You can visit page (currently http://stilker.sknt.ru:3001​ ) and try it out.
You also may open several tabs or connect with your friends and test multiplayer visibility.

But currently it required mouse/keyboard, no touchpad support (it`s not a problem, just not added yet)

World is unlimited (unless you reach bound of largest supported number)

Next step is details generation, like trees.
After that, i`ll support world modification by users.

btw: Not an ads, but Chrome based browsers run faster than Firefox

video: