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SAS: Zombie Assault 4 official game artwork

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SAS: Zombie Assault 4 Wiki

Purge the undead! Intense action-shooter with deep rpg elements, including upgradeable guns and armor, unique class skills, and class special abilities. Entire game can be played single player or as a 4-player

Steam ↗Windows · macOS
GameWiki EditorialReviewed 5 guide topics

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About SAS: Zombie Assault 4

A virus outbreak on a distant trans‑federation planet unleashes a massive zombie horde, forcing the elite SAS units to battle for humanity’s survival. Players select one of three classes, customize a skill tree, and equip a wide array of weapons and armor.

The game offers single‑player missions and up to four‑player online co‑op across seven story‑driven maps, each with its own victory condition. With 17 zombie types, evolving threats, and boss encounters, every match delivers intense, fast‑paced action.

01 / THE GUIDE

Story and Setting

The outbreak occurs on a far‑off trans‑federation world where a rapidly growing zombie horde endangers humanity. The narrative unfolds across seven story‑driven maps, each presenting a distinct victory condition that shapes player objectives.

Progression requires learning the strengths and weaknesses of each zombie type and boss, as they evolve new powers. Understanding map layouts and objectives helps players adapt tactics to survive the escalating threat.

  • Observe zombie attack patterns early to plan counter‑measures.
  • Match your loadout to the specific victory condition of each map.

02 / THE GUIDE

Character Classes & Skill Trees

Three unique classes—Assault, Medic, and Heavy Gunner—are available, each with a dedicated upgrade tree containing 19 skills. Players can fully customize these trees to suit their preferred combat role.

The skill system includes high‑level powers such as Assault Team, Aerial Bombardment, and Zombie Antidote, which can be combined with class abilities to enhance team synergy in co‑op matches.

  • Focus on a single class’s tree to maximize its unique abilities.
  • Coordinate skill choices with teammates for complementary tactics.
SAS: Zombie Assault 4 official gameplay screenshot
Publisher-provided gameplay image · Ninja Kiwi

03 / THE GUIDE

Weapons, Armor & Loot

Loadouts start with a pistol and two rifle‑class weapons, selectable from submachine guns, shotguns, assault rifles, machine guns, flamethrowers, rocket launchers, lightning guns, and more. Over 160 guns and armor pieces are hidden in strongboxes or on fallen enemies.

Armor provides protection against physical, thermal, and chemical attacks. Augmentations can boost damage, fire rate, reload speed, or defensive stats, allowing players to tailor gear to specific threats.

  • Search secret rooms for strongboxes that contain higher‑grade gear.
  • Balance weapon damage with armor protection to survive tougher zombies.

04 / THE GUIDE

Multiplayer Co‑op Modes

Up to four players can join online quickmatch with teammates of similar level. Teams can coordinate auto‑turret placements, high‑level powers, and physics objects to create temporary cover while clearing rooms.

Co‑op play emphasizes combined firepower and strategic use of each class’s abilities, allowing players to clear waves efficiently and tackle boss encounters together.

  • Communicate turret locations to avoid overlapping fire.
  • Assign roles based on class strengths for smoother room clearing.

05 / THE GUIDE

Zombie Types & Bosses

Seventeen distinct zombie types feature special attacks and behaviors, and they can evolve to gain new powers as the game progresses. Each type requires specific tactics to defeat effectively.

Boss zombies introduce unique challenges, such as acid‑worm spawns or rage‑mode pursuits. Learning their patterns and weaknesses is essential for survival.

  • Prioritize eliminating zombies that can evolve early in a wave.
  • Study boss patterns to exploit their specific vulnerabilities.

WATCH THE GAME

SAS: Zombie Assault 4 videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

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COMMUNITY

Player discussion

    QUICK ANSWERS

    SAS: Zombie Assault 4 FAQ

    Is the game available on Linux?

    The platform list shows Windows and macOS as true, while Linux is marked false, indicating no Linux support.

    Does the game support full controller input?

    Full controller support is listed as a feature, confirming controller compatibility, though specific functions are not detailed.

    Can I play with friends online?

    The game includes online co‑op for up to four players, allowing quickmatch with teammates of similar level.

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    SOURCES & CREDITS

    Official resources and further reading

    Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-23. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.