X Construction Today’s Free App of the Day on Amazon
Amazon’s keeping things rolling with free paid apps and today’s feature is a puzzle game that tests your engineering expertise. X Construction has you building bridges fit for trains. You simply build a structure solid enough to hold a train of 2-3 cars. If your structure is weak you could be sending hundreds of innocent patrons to their free-falling deaths. Scary stuff, right? So get out there and build those bridges for free in the Amazon app store. (Usually $1.44 in the Android market.)