The Cities XL Interview on Gaming Nexus talks with Jerome Gastaldi, asking the CEO of Monte Cristo questions about Cities XL, the latest installment in their urban planning series. The conversation inspires some lengthy answers, covering topics like graphics enhancements and gameplay mechanics, including new persistent features and Gameplay Extension Modules (GEMs): "As for the city builder core game, the GEMs are designed so that players get higher challenges while learning. They really will be intuitive to every skill level of player. As far as selling creations is concerned, we aren't planning a real-world currency exchange, but you will find out that your creations can be sold to in-game citizens. An example that we're throwing around is the automobile manufacturer GEM. Let's say you build that GEM and start designing your own cars. The next step will be to advertise those cars in other online cities and pretty soon you will find citizens in other towns driving those customized cars, and your resources start getting boosted by all these deals."