SPIDERBOT EXTINCTION

The machines have turned upon their creators. The spiderbot horde threatens to drown the last strongholds of humanity and only a masterful defense can stop it. Embark on an extensive campaign of 30 increasingly challenging levels in this dark sci-fi tower defense.

A HORDE THAT FLOWS

The swarm follows the path of least resistance, and you decide where the resistance is. Sustained fire doesn't just kill bots. It pushes the front line back and steers everything behind it around your guns. A mortar strike punches a crater into the horde and sends a ripple through it. But a swarm this size has weight: cram thousands of bots into a narrow gap and the crush behind them will force the front line through. Read the flow, then shape it.

AN ARSENAL BUILT TO SHAPE THE SWARM

• Machine Guns: steady pressure that stuns and shoves the front line.

• Mortars: blast holes in the horde and send shockwaves rolling through it.

• Flamethrowers: scorch anything that gets too close.

• Frost Cannons: slow everything they touch, turning a rush into a crawl.

• Lasers and Railguns: for when you need to punch straight through.

• Spider Plough: a heavy, slow projectile that parts the swarm like a snowplough, hurling bots to either side.

When the line is about to break, call in orbital strikes and bombing runs to buy yourself time.

POWER IS EVERYTHING

Energy cores must be protected at all costs. The number of turrets you can deploy is limited only by the power output available. Want even more firepower? That'll start compromising the health of the energy cores. Do you save core health to withstand damage from spiderbot horde, or go all in on wiping them out before they can reach it?

EXPAND THE W.E.B.

The Weaponry Enhancement Board (W.E.B.) is the key to winning the war. Invest resources gained through battle to enhance the arsenal with new turret types and critical upgrades to each turret.

BUILD, SHARE AND PLAY

The game includes a full level editor. Easily paint the terrain, bathe the streets in neon glow, then unleash the horde on your own design. When it's ready, share it online and see how other players fare against it.

When you want a new challenge, browse levels made by the community and see if you can hold the line.