The idea for Metropolis Resort started over twenty years ago with a family in Eau Claire. As Mark and Julie Steil raised their daughter, they found the fun in this town to be limited to movies and bowling and decided that Eau Claire could use a little Action and a little Chaos. With his experience in construction and contracting, Mark began to draw out his visions for a place that he and his daughter would find fun. It was during this process that Mark met Tom and Shirley Hahn, a local grocer and restauranteur couple, who agreed on the need and they became partners. After a nationwide tour of attractions and years of planning, Action City opened in 2005, followed by Metropolis Hotel and Chaos Waterpark in 2008 with their third partner couple, Deb and Kerry Kjelstad. Two years later, Metropolis Resort was created as one business out of the combination of the three. Most recently, Action City added on a 30,000 sq ft Trampoline Park in 2017.