SAS Zombie Assault 3 Onslaught Mode
"Old-school survival. Face down multiple wave of Zombies"
―Onslaught mode description

Onslaught mode is one of the modes in SAS: Zombie Assault 3. The player has to fight multiple waves of zombies with their allies.

Alternate descriptions

"Survive a few waves of zombies without dying too much"
―Onslaught mode (Private Match)
"The dead have risen. Stay alive and protect your squad. If you all go down, you'll join the undead in their relentless quest for brains."
―Game Description
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