SAS 4

SAS 4 is an zombie survival game that made by Ninja Kiwi it is also an single player in offline and a multi player in online, game and open strongboxes to gain armor or gun, it has a red and black versions but red weapons/armor is only unlocked if you're powerful and black weapons/armor is only unlocked from black strongboxes, black keys are needed for black strongboxes you'll also obtain it in multiplayer event ranking or purchasing it in the shop. And premium weapons are the most best equipments to kill zombies than ordinary guns from strongboxes you'll purchase it in the news of it and you will see an premium guns then purchase it if you want. Info (From Ninja Kiwi) New Event Mode! Virus Samples has been added to SAS 4. Kill zombies and collect the samples they leave behind, beat other players and win big rewards! The year is 3104, and a virus outbreak on the trans-federation planet of Thera threatens the very fate of mankind. The only thing stopping this new and terrifying zombie horde from pushing mankind to the brink of existence is the highly skilled and highly weaponized special forces of the SAS. Choose from 3 unique character classes, and utilize the fully customizable skill tree combined with hundreds of weapons and armor pieces to build yourself the ultimate zombie killing hero. Play your way through 7 detailed and challenging levels in single player or 4 player multiplayer and save what's left of our ravaged civilization.