Beat on the Brat with a Baseball Bat! Oh yeah! Oh yeaheah!
40 turn limit and researsch limit lvl 4 IIRC.
Full compatibility with full game (in early era) and full access to everything when you register.
You can play demo with full version users (in early era games).
Random AI can use any nation. If you choose participants you can only use the five. Not sure which. Think it is Marverni, Kailasa, Atlantis, C'tis and one more, Arco perhaps. A beta or JK would have to correct me if wrong. Hmm, it might be Ulm instead of C'tis.