One survivor. Eight minutes. Build your way out.

Horde Circuit is a single-player, top-down zombie survival roguelite built around short runs and escalating firepower. Your gun fires automatically; you control your movement and aim. Cut a path through the horde, collect XP, and choose upgrades that turn a desperate start into a screen-filling counterattack.

Evolve your gun. Break the horde.

Start with a pistol and work toward specialized weapon forms. Build a critical-hit bullet storm with Crowdbreaker, carve damage trails through crowds with Gravespike, or push toward the six-barrel Horde Eraser. Mix in-run upgrades into combinations that reward the way you want to fight.

Build the drone you wish you started with.

Your autonomous combat drone follows you and picks its own targets. Invest Scrap and Technology in its core hardware, then unlock Blackbox Protocols: Siegebreaker mortar shells, Twin-Link extra projectiles, chaining Arc Relay attacks, and defensive Aegis Bursts. Each protocol has three increasingly powerful ranks.

Four stages. Four reasons to keep moving.

Fight from The Hungry City through Dead Interstate and Quarantine Sector to Blacksite Zero. Clear stages to unlock the next, face new enemy combinations, and learn each Juggernaut’s attacks. Dodge the Highway Rammer’s charge, escape the Plague Juggernaut’s toxic wake, and navigate Protocol Omega’s erasure grid. Surviving the clock is not enough: the final boss has to fall.

Salvage. Upgrade. Try another build.

Bank Scrap for permanent survivor upgrades and earn Technology through successful clears and map-specific challenges. Strengthen your next attempt, work toward a once-per-run revive, and check the combat report to see which weapons and abilities did the damage.

• Eight-minute survival runs with manually aimed, automatic gunfire.
  
• 24 in-run upgrade choices, branching gun evolutions, and permanent progression.
  
• An autonomous drone with core hardware upgrades and four three-rank Blackbox Protocols.
  
• Four unlockable stages with distinct threats, bosses, and Technology challenges.
  
• Keyboard and mouse controls, gamepad support, and adjustable text, audio, screen shake, flashes, and player-effect visibility.