Age of Empires Online, hosted by Project Celeste, entirely free to play!, in accordance with Microsoft's Game Content Usage Rules.
Got new maps, new balance patch, plenty of PvE content, and a new civilization (Romans) coming!
Gonna be casting, and possibly playing in an encore game in tonight's (today's, I'm just Aussie) showmatches. We do them most Saturdays at 2pm CEST onwards for the time being.