When devs say the buildings will be unlocked based upon the achievements. Does that means like in cities XL , you get to build certain things after getting to a certain population or is it going to be more dynamic. I think it should be dynamic like If your city is doing great in attracting certain tourism , You get to build some touristy monument or skyscrapper. Same way if your city is very eco-consious and has low level of pollution , u get to build massive solar plants and If your city has a lot of rich people , you get to build Fancy skyscrapperry restaurants and stuff.