The zombie apocalypse is here... Time to shoot the crap out of some zombies! Enter the hardcore survival world of Tribulation; a zombie survival shooter where you must run and gun your way through hordes of the undead! Use your rage meter when things get hairy to unleash your true power! Upgrade your skill tree to get crazy powers like critical strike and regeneration! Use unlocked souls to purchase better weapons! How long can you survive against the undead?