French game developer Kalisto Entertainment is acquiring Day Light Productions in a stock swap. The buy will help solidify Kalisto's efforts to move into the North American market, where it is already doing 40 percent of its business, and will also give the company a U.S. base of operations. Day Light, based in Austin, Texas, and San Francisco, will be re-christened Kalisto USA. The deal will become official pending shareholder approval Calico's annual meeting in September.