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Build a Defense Against the Zombie Horde
SAS Zombie Assault TD turns the SAS Zombie Assault series into a tower defense game. Instead of controlling one soldier through a shooting mission, you command the defense and decide where soldiers and automated weapons should stand.
Large groups of zombies move across the map toward civilians. Your job is to stop them before too many get through. You can place SAS soldiers and automated turrets in useful locations, then improve the defense as stronger waves arrive.
Create Your Own Defensive Route
The maps give you freedom when placing many of your defenses.
This means tower placement does more than decide where bullets come from. A smart layout can create narrow passages and force zombies to travel through areas covered by several weapons.
You can use defensive positions to build useful chokepoints instead of spreading everything around the map without a plan.
Different defenses have different jobs. Heavy machine-gun turrets provide steady fire. Grenade-launching turrets can deal with groups. Special turret upgrades can give you other ways to handle difficult enemies.
Face Several Difficulty Modes
The Flash version of SAS Zombie Assault TD includes six maps.
Each map can be tackled in Normal, Elite, Nightmare, and Apocalypse modes. Apocalypse changes the usual structure by continuing with wave after wave until your defense finally falls.
Harder settings make strong tower placement and sensible upgrades much more important.
Earn SAS Dollars and Buy Support
Winning maps rewards you with SAS Dollars.
This money can unlock stronger upgrades and powerful support options. Available help includes helicopters, airstrikes, and even nuclear attacks. These tools can rescue a defense when an ordinary group of towers is struggling against a heavy wave.
You still need to use them carefully. Strong support should not replace good planning.
Control the Speed of the Battle
The game mainly uses the mouse for choosing and placing defenses.
You can also speed the action up to three times normal speed. Between waves, you can send the next group early instead of waiting for the countdown.
SAS Zombie Assault TD gives players plenty to manage. You need to place defenses, shape enemy routes, upgrade useful units, watch civilian lives, and prepare for stronger zombies. The mixture of open placement and SAS weapons makes it feel different from a basic tower defense game.