Not the first DLC I would buy, but not the last one either. I bought it mostly for the earlier start, but it has some small improvements on top of that. I recommend buying it once its on sale.

Not a mandatory DLC at all, but a very nice addition especially if you wish to play in the scandinavian region. Would recommend buying it of a sale.

This DLC adds a few small features to the game, none of which are super important, but considering the price its a very solid pick up. I would recommend buying it especially if you enjoy playing as the Byzantine Empire.

Adds a bunch of religion based improvements and features, but I would recommend waiting for a sale to buy this one.