SAS: Zombie Assault 4

Contains adsIn-app purchases
409K reviews
Content rating
Rated for 16+
10M+
Downloads
Content rating
Rated for 16+
Strong Violence
In-Game Purchases
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About this game

Purge the undead! Awesome upgradeable guns and armor, unique class skills, and 4 player co-op! Play the most intense zombie shooter on mobile, from the makers of Bloons TD 5.

A virus outbreak on a distant trans-federation planet unleashes horrors from humanity's past. A powerful, rapidly growing zombie horde threatens the very existence of humankind, and the only ones capable of fighting back are the highly skilled, highly weaponized special forces of the SAS.Choose from 3 character classes, maximize the fully customizable skill tree, and select from hundreds of weapons and armor pieces to build the ultimate zombie killing hero. Play dynamic, challenging levels in single player or 4 cooperative multiplayer and give our ravaged civilization its last best hope.

INTENSE ACTION
Zombies swarm the screen, exploding into bits under your hail of bullets. Each of the 17 unique zombie types have special attacks and behavior, and they can evolve - manifesting terrifying new powers as you progress through the game.And just when you think you've beat them all, savage boss zombies hunt you down, puking out acid worms or storming after you in rage mode. Learn their strengths and weaknesses as you lead the action across 7 story-driven maps with varying victory conditions.

UNBEATABLE 4 PLAYER CO-OP
Quickmatch with up to 3 other players of similar level and use the custom skills and weapons chosen by all players to form an effective fire team. Coordinate auto-turret placements, high level room-clearing powers like Assault Team, Aerial Bombardment, and Zombie Antidote, and move physics objects to create temporary cover while you paint the room red.

HEAPS OF EPIC LOOT
Over 160 incredible guns and armor pieces are locked up tight inside increasingly rare strongboxes that you can find in secret rooms or on the mangled remains of your enemies.Your loadout includes a pistol and two rifle class weapons - choose from fast firing submachine guns, devastating shotguns, high damage assault rifles, brutal machine guns, flamethrowers, rocket launchers, lightning guns, and more. Armor up for protection against physical, thermal, and chemical attacks, then round out your arsenal with auto-turrets, grenades, and special high damage ammo to rip through the undead before they rip through you.

AMAZING RPG-STYLE UPGRADES
The Assault, Medic, and Heavy Gunner classes each have unique upgrade trees, giving each character 19 skills to customize. Hundreds of guns and armor pieces have a range of grades and a powerful RED version when you reach high levels. In addition you can add powerful augmentations to your guns and gear which enhance core properties like damage and rate of fire, but can also improve reload time, resist damage, and heal.

Download for free and play SAS: Zombie Assault 4 now!

Please Note: SAS: Zombie Assault 4 is free to download and play (aside from internet, carrier, data, device, and other services for which the player is financially responsible), but some in-game items can be purchased with real money. You can turn off the payment feature by disabling in-app purchases in your device's settings.
SAS: Zombie Assault 4 is recommended for players 12 years of age and older, and the fantasy violence, gibs, and zombie blood are to be expected given the survival theme. We have included a "Gore" setting on the Options screen specifically for young or sensitive players, and this removes the blood and gibs when Gore is toggled Off.
Customize your hero, gear, and guns then team up to eradicate the zombie hordes!
Updated on
Dec 13, 2024
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Personal info, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

349K reviews
Celsius
August 3, 2026
The game is pretty good, i had alot of fun with it, the problem tho, i was in the middle of a match, when suddenly my game just crashed for no reason, i thought it was my phone but when i checked the reviews, there were some people who had the same experience, it genuinely pisses me off because i was in a nightmare run and i got a black box, but it crashed so i lost it
3 people found this review helpful
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Chao Zheng Tham
August 1, 2026
The games graphics are great, i dont experience lag at all, the advertisements are not inturpting my game play. I have been playing this game for afew days now and really enjoy it. I would like the developers to add more things to make the game more enjoyable such as adding more enemies to battle against, over time i feel that it gets abit repetitive. Secondly is to add more maps, lastly, i would like more classes.
19 people found this review helpful
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Mercel Ragasa
April 22, 2026
My favourite childhood game! and still is until today! I would like to suggest a setting or feature where you could adjust the size of the buttons and move them around based on the player's liking! because in my opinion, the placement of the skills for each class is kind of weird for me. And I find it hard to click when I'm shooting the zombies and moving at the same time, but I hope the developers do implement this feature! ANWAYS! 10/10 game! I love it!🩵
60 people found this review helpful
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What’s new

Minor bug fixes and improvements