Swarm Rush: Fortress Defense

Hold the line. Defend your fortress.

Swarm Rush: Fortress Defense is a sci-fi tower defense game about building a defense that works together. Mix weapons, choose powerful upgrades and hold back waves of alien attackers.

Your guns fire automatically. You make the calls: focus dangerous targets, shape your firepower and time your support when the swarm closes in.

BUILD YOUR OWN LOADOUT
Start with Cannons and earn new weapons through a hands-on introduction. Then configure your gun positions across two rows. Stack a favorite weapon or combine different types to balance damage, range and crowd control. Unlock an arsenal ranging from Cannons and Tesla weapons to Gravity weapons, Railguns, Prism Lasers and Plasma weapons.

TURN UPGRADES INTO COMBINATIONS
Slow a rush with Frost. Strike packed enemies with Tesla lightning. Use Cannon upgrades to mark targets, then hit them with Missiles to trigger an explosive Thermal Bloom. Choose battle research, develop your weapons and unlock evolutions that change how they fight. Upgrades apply to every equipped gun of the same type, so your formation shapes the value of each choice.

COMMAND THE CRITICAL MOMENT
Tap an enemy or an area to focus fire. Time Boost and your chosen support ability to answer a dangerous push. Adapt to fast swarms, armored attackers and bosses with vulnerable moments. Your guns handle the shooting; your decisions shape the defense.

MAKE LASTING PROGRESS
Bring earned resources back to the Workshop for permanent improvements. Unlock weapons, develop support units and equip modules to refine your build. Battle research starts fresh on your next attempt, while permanent upgrades and unlocks stay with you.

PUSH DEEPER INTO THE FRONTIER
Fight through 60 campaign levels across four regions, then take on 12 advanced challenges. Return for Veteran encounters, test your builds in Boss Trials and tackle optional Operations and Contracts. Explore weapon behavior in the Field Guide, or pause and resume a saved battle when you need a break.

Prepare your fortress. Find your combinations. Hold the frontier.

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