Death Stair, a competitive multiplayer stair climbing game for up to four players, has landed on Steam, getting a beta along the way. The game pits one player in a cannon against three others racing to the top of a giant staircase. The Runners are quick and maneuverable, skills needed to make it to the finish first. The Gunner on the other hand is armed to the teeth with a variety of unconventional weaponry such as beach balls, mines, dodgeballs, rockets and bombs. You can watch the E3 trailer for the game below.