MetroTD

Plan your route, activate elemental fieldsConnect to base stations freely, design your multiple defensive lines, activate elemental fields, and damage or interfere with the enemy. But please note that this is the last line of defense for your home, and being too far away from the main base may lead to undesirable consequences...
Upgrade the convoys, crush an endless sea of monstersStep into the world of Metro TD, featuring an unmatched battle train system. Witness each convoy's rapid growth in the heat of battle. Immerse yourself in screens aglow with gunfire, missiles, frosty flames and lightning strikes —— the cooler the special effects, the swifter the demise of your foes! Crush the audacious enemy daring enough to face their own doom.
Free combination, exploring brand new weaponsGet ready for intense gaming thrills as you command our cutting-edge battle cart!Machine gun carts, rocket carts and chaining carts combine endlessly, with more hidden weapons waiting for you to discover and synthesize. Every round is a completely new version you've never seen before.
1 + 1 > 2? 1 + 1 + 1 + 1 + 1 + 1 + ... Of course, it's infinite!