Civ Rev, BioShock join Xbox Games on Demand (check your region)

Xbox 360's Games on Demand offering has been updated with the addictive Civilization Revolution and the sublime BioShock for the European regions.

• Civilization Revolution -- Available in Canada, Germany and the US for $30.

• BioShock -- Europe (already available in the US) for £19.99, which seems a bit high.

There is also an update for the Japanese region, which adds Earth Defense Force 3, Armored Core 4 and Wartech: Senko no Ronde for 2000

. We feel obligated to mention that these prices seem to miss the point of digital distribution from the consumer perspective.