13 Days in Hell is an arcade shooter that gives you control over the "chosen one", with the sole purpose of surviving an onslaught of souls in hell for 13 full days. You have to shoot and kill the souls coming at you with their axes, or they may chop you up. Once your HP bar (shown on the lower left as a cross) is drained, it's game over. You have to keep shooting and surviving until the day ends, which is indicated by a timer at the bottom of the screen - the day ends when the timer reaches zero. You can buy new weapons after each day using the souls you've killed as currency. These weapons are helpful as each day, stronger souls with different patterns will come after you. Survive through the 13 days and fulfill your role as the chosen one to find out what is in store for you!