Cannon, Catapult, Slow Tower, Multi Shot Tower, Net Tower, Mana Drain Tower, Teleport Tower, Bombard Cannon, Ballista, Gold Comsumption Tower choose your towers to perform your strategy.
But with demand growing by thousands of percent, and with local zoning authorities slow to approve new tower construction or even modifications, more spectrum is essential.
The National Institute of Standards and Technology has spent more than two years investigating Tower Seven but lead investigator Dr Shyam Sunder rejects criticism that it has been slow.