Deadly 30 is now available on Steam, offering a throwback side-scrolling shooter/tower defense hybrid from a two-person development team. Here's the release trailer and here's word on the game, which is 33% off for the next week: "Can you survive the horror? … a retro-style survival horror game developed by the two-man indie team of Gonzossm and Iggy Zuk. Survive 30 days and nights in a zombie-infested world by recruiting companions, upgrading weaponry and fortifying your position."