i just discovered this:
https://alliances.commandandconquer.com/
a complete mmo (ogame like - far more visually advanced) made game in html with canvas.
just to build up the c2 hype, this kind of game is completely doable with construct 2 and a little knowledge of server side scriptimg (ie. php + mysql) as the game is not fully realtime. the only thing is the server strength when you get lot of users.
just to let you all know :)