Build-a-lot 4: Power Source [Game Download] by Hipsoft

The power is in your hands! Help friendly towns to grow and glow by building neighborhoods and generating clean energy to make them run. Get your neighborhoods fit and fancy by building tennis courts, swimming pools, boutiques and more. With multiple campaigns to play and a variety of awards to earn, there is plenty to do and lots of fun waiting for you in this electrifying addition to the Build-a-lot series!

Owner Reviews, Ratings, Comments and Criticism
I have no idea what's Elizabeth's issue in saving the Challenge Campaign -- I haven't had any problems with it so far, and I'm doing those challenges right now. I must admit that at first, I found the whole power theme somewhat annoying, but now I just look at it as an extra angle of difficulty. More, please!