Tower Defense Strategies

Every month ends with a brutal attack on your settlement. Enemies pour from portals and carve a path straight to your town hall. If you place towers randomly or scatter your troops, the horde breaches your defenses. Survival requires you to dictate the battlefield.

Creating Bottlenecks

The most effective defensive tactic is the bottleneck. Do not try to defend a wide perimeter. Force the enemy to fight on your terms. Use natural terrain and your own building placements to funnel enemies into a single, narrow path.

Place your most durable buildings, like Barracks or upgraded resource structures, along the edges of this path to form walls. Line the path itself with your highest damage towers. When enemies squeeze through the bottleneck, your concentrated fire rips them apart. This turtling strategy protects your vulnerable civilian infrastructure and maximizes your damage output per tile.

Tower Placement and Targeting

Different towers serve different purposes. Arrow Towers provide cheap, reliable damage against single targets. Cannon Towers deal splash damage to groups. Purification Towers specialize in wiping out swarms of weak enemies like skeletons.

Keep your area-of-effect towers near the entrance of your bottleneck to thin the herd. Place single-target, high-damage towers deeper in your defensive line to pick off the heavily armored survivors and boss units. Do not place towers too close to the enemy portals.

Beware of targeting deadlocks with large ranged installations like Mortars, Fire Towers, and Stone Arrow Towers. If you place these massive towers alongside immortal regenerating "Tree Guards" stationed near a "Repair Hut", enemy ranged units will permanently lock onto the Tree Guards. Your large towers will then permanently fixate on the stalled enemy ranged units, ignoring melee enemies entirely. Stick to medium towers or use complex wall placements to block line-of-sight and force enemies into close-range kill zones.

Active Troop Management

Recruiting troops from the Barracks is only half the job. You must actively manage their positions during a battle. Troops act as a dynamic wall. They engage enemies in melee combat, holding them in place so your towers can deal damage.

If a portal spawns on an unexpected flank, manually reposition your troops to intercept the new threat. Do not leave them standing idle on the wrong side of town. When a unit takes heavy damage, pull them back behind your lines to heal. Rotating healthy troops to the front line keeps your defensive wall intact and prevents the enemy from breaking through to your towers.

Using Traps Effectively

While traps do not consume population upkeep, standard options are mathematically flawed. Spike Traps lack the durability scaling to justify their gold cost, and Bomb Traps require tedious manual detonation during chaotic late-game battles. The most effective approach is to steer away from traditional traps and focus on specific synergies. Combine Gravity Traps with poison perks, surrounded by magic wells and resist towers, to indefinitely spawn-camp enemies.

Medical Tent "Bundle Strategy" and SOS AI

When a frontline unit sustains damage, the backend "SOS AI" triggers an overriding command for the entire army to run toward the nearest healing structure. Do not scatter Nature Wells around your base. If the well's resource pool is depleted, your army will "ping-pong" uselessly across the map searching for the next well, completely abandoning the frontline.

The Medical Tent also suffers from a microscopic 1.5 grid radius. The only mathematically optimal way to use tents is the "bundle strategy." Construct exactly four tents clustered tightly in the absolute center of the map. Cycle your frontline melee units back to this heavily defended core to heal rapidly before returning to the periphery.