Deep Breach

Deep Breach

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Screenshots

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Description

Fight relentless alien swarms in a top-down action roguelike that blends intense shooting with tower defense. Customize weapons, assemble deadly turrets, unlock HELIOS technology, and push through enemy lines to destroy the alien core.

Platforms

macOS · Linux · Windows

Developer

Alyssium

Publisher

Alyssium

Last sync

October 8, 2026

About

⚠ CONTAINMENT FAILURE

The facility has fallen. An alien outbreak is spreading, defensive systems are collapsing, and the last remaining operator stands between humanity and an unstoppable threat.

Deep Breach is a tactical sci-fi action roguelike combining relentless top-down combat, weapon customization, and tower defense. Fight alongside HELIOS, a damaged tactical AI, as you rebuild your arsenal, establish defensive positions, and push through alien-controlled territory.

Survive the swarm. Engineer your defenses. Destroy the alien core.

⚔️ RELENTLESS COMBAT — NO SAFE GROUND

The battle never stops.

Face relentless alien swarms, heavily armored enemies, shielded units, and devastating bosses in continuous real-time combat.

Every encounter demands movement, firepower, and tactical decisions. Deploy your defenses, unleash devastating weapons, and adapt as the battlefield becomes increasingly hostile.

🧬 ADAPT YOUR ARSENAL

Not every weapon works against every enemy.

Alien forces possess specialized defenses that demand different approaches. Master four damage types to exploit their weaknesses:

  • 🔥 Incendiary — Burn through biological enemies.
  • 🧪 Corrosive — Dissolve heavily armored targets.
  • ⚡ Ion — Overload energy shields.
  • 💥 Ballistic — Reliable damage against all enemy types.

Identify threats, switch tactics, and build an arsenal capable of countering whatever the breach throws at you.

🛠️ ENGINEER YOUR OWN WEAPONS

Your weapons are more than equipment. They're the foundation of your survival strategy.

Customize your arsenal through a flexible weapon modification system. Experiment with different damage profiles, enhance weapon performance, and create specialized builds for different combat situations.

Whether you prefer rapid-fire suppression, devastating close-range damage, or precision firepower, your loadout defines how you fight.

Build the weapon you need. Not just the weapon you find.

🛡️ ENGINEER & DEPLOY TACTICAL DEFENSES

You can't hold the line alone.

Deploy automated turrets, reinforce strategic positions, and establish deadly defensive networks to withstand overwhelming enemy pressure.

Experiment with turret configurations and specialized weapon technologies to develop defenses suited to different battlefield threats.

Call upon orbital support, unleash devastating strikes, and use recovered resources to fabricate the equipment needed to keep fighting.

Your weapons win battles. Your defenses hold the frontline.

🎖️ CHOOSE YOUR COMBAT DESIGNATION

Define your combat identity through three specialized Designations, each with its own progression and powerful battlefield Protocols.

  • 🔴 BUTCHER — An aggressive close-range specialist built for relentless combat against biological threats.
  • 🟠 SHREDDER — A ballistic warfare specialist supported by autonomous combat drones and devastating armor-shredding firepower.
  • 🔵 TESLA — An Ion warfare specialist focused on electrical devastation and overwhelming shielded enemies.

Unlock new Protocols, strengthen your abilities, and develop a combat style that complements your weapons and defenses.

🔬 RESEARCH. RECOVER. REBUILD.

The facility's technology isn't lost. It's waiting to be recovered.

Collect resources, unlock advanced research, restore disabled systems, and gain access to increasingly powerful equipment.

Expand your combat capabilities with new weapon technologies, defensive platforms, and battlefield enhancements.

Every research breakthrough creates new strategic possibilities.

⏳ THE DAWN SYSTEM — AN ESCALATING WAR

Every Dawn brings a new challenge.

Enemy pressure intensifies, stronger threats emerge, and additional sectors become increasingly dangerous.

There are no traditional waves separating combat from preparation. The battlefield remains active as you fight, upgrade, research, and prepare for the next escalation.

Adapt your strategy as the conflict grows.

Surviving one Dawn only prepares you for the next.

🎯 BREAK THROUGH TO THE ALIEN CORE

Survival is only the beginning.

Fight across multiple enemy-controlled fronts, break through fortified barriers, and advance deeper into the facility.

Strengthen your arsenal, establish powerful defensive networks, and overcome increasingly dangerous resistance.

Your ultimate objective is not to survive forever.

Find the source of the breach. Destroy the alien core.

📡 HELIOS CALCULATES. YOU DECIDE.

HELIOS was designed to protect the facility.

Now its systems are damaged, its network is compromised, and its ability to support the operation is limited.

Recover what remains of its technology and turn the facility's surviving systems against the invaders.

You are the last line of defense.

The breach will not contain itself.

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