The Windows Phone app which has gone free next as myAppFree app of the day is Rush for Gold : Alaska.
Rush for Gold : Alaska Description:
Who says the time of the great gold prospectors has passed?! You have an opportunity to be one yourself. Explore locations for gold and other useful resources, protect your workers from wild animals and robbers, and build the town of your dreams in Alaska!
– Two game modes – time-limited and free play.
– 40 striking locations and four seasons.
– Exciting, dynamic gameplay.
– Lots of buildings and units to interact with.