防御前线

Defense Front is a single-player 3D tower defense game played from a top-down perspective. An unknown alien force has descended on Earth, and you have been placed in command of defensive operations across the globe. Build towers on designated platforms, lock down vital junctions, and reshape the enemy's route as the battle unfolds.
Plan their path. Direct your firepower. Decide what needs to die first. Build a defensive network of your own and hold the line on an ever-changing battlefield.

Reshape the Battlefield
Most missions feature dynamic routes. Towers are more than weapons—they can also serve as barricades that shape the flow of battle. Seal off one junction and the aliens will be forced down another route. Make them take the long way around, funnel entire swarms into overlapping fields of fire, and redraw your defenses as the situation changes.

Set the Rules of Engagement
Every tower can automatically prioritize the alien closest to its destination, the target with the highest health, or an enemy chosen at random.
When a threat demands immediate attention, switch to direct targeting and order a tower to focus on a specific enemy. Bring down heavy units, eliminate support creatures, or delay a kill until a volatile alien can do the most damage to its own ranks. Every targeting decision can change the course of the battle.

Five Tower Types, Ten Final Specializations
Deploy machine guns, cannons, mortars, shock towers, and lasers, then combine their different ranges, attack patterns, and battlefield roles to build an effective defense.
Each tower can be upgraded through multiple levels before committing to one of two mutually exclusive final specializations: double down on its existing strengths, or alter it with an entirely new combat mechanic. Five tower types and ten final upgrade paths open up different tactical solutions—even on the same map.

An Alien Force That Affects Its Own Ranks
Face swarming light aliens, durable heavy units, fast-flying enemies, specialist creatures, and powerful bosses, each placing a different kind of pressure on your defenses.
Some aliens heal, summon, or empower their allies. Others slow, injure, or disrupt their own kind. Read the relationships within each wave and decide which enemies must die immediately—and which ones may be more useful alive for just a little longer.

A Campaign Across the Globe
Establish defensive lines around the world and follow the crisis as it unfolds through in-mission exchanges with your AI assistant and second-in-command. Every map layout, route network, and enemy lineup will test both your defensive planning and your ability to make decisions under pressure.
Shape their route. Choose your targets. Build the firepower to hold the line. Commander, humanity is awaiting your orders.