Bunker Buster

Dig. Build. Destroy.

Bunker Buster is a tactical underground base-builder with real-time combat. Excavate a hidden fortress beneath the earth, power it, staff it, arm it, then defend it against relentless enemy factions or take the battle to them.

Build Your Bunker

Construct a fully self-sufficient underground fortress room by room. Manage power, air, water, food, sanitation, and morale while preparing for war.

Infrastructure — Generators, storage depots, cooling loops, exhaust vents

Life Support — Air intakes, scrubbers, water pumps, kitchens, med bays

Weapons — Missile silos, artillery, mortar pits, EMP cannons, drone hives, mech hangars

Defences — SAM sites, AA flak, Trophy active-protection systems, armour plating

Surface Installations — Watchtowers, radar domes, HESCO walls, camo netting

Intelligence — Radio intercept, seismic arrays, signal jammers

Synthesize Your Arsenal — Billions of Combinations

Every weapon, defence, and daemon is built piece by piece, not picked off a shelf.

Ammo Synthesis — Stack up to 25 stat modifiers across 6 weapon platforms. Order changes the outcome: the same components in a different sequence fire differently.

Defence Synth — Layer 10 intercept modifiers across SAM, AA Flak, and Trophy systems to counter incoming fire before it lands.

Cyber Warfare Suite — Engineer daemons from 15 code modifiers and conditional triggers, or stack 10+ firewall layers into an unbreakable defence grid.

Combined, these systems give you billions of viable loadouts — no two bunkers, and no two battles, play the same.

Go to War

Fight across a tactical No Man's Land in real time. Target enemy rooms, intercept incoming strikes, and deploy your full arsenal.

Launch ICBMs from buried silos

Deploy combat mechs to hold the line

Scramble drone swarms for recon and assault

Fire precision artillery or suppress with mortar fire

Breach enemy systems with your own synthesized cyberweapons

Conquer factions. Claim their weapons.

Ten enemy factions each bring unique tactics. Defeat them and capture their technology for your own arsenal, including burrowing Mole Torpedoes, orbital kinetic rods, signal jammers, and more.

Multiplayer / Raid Enemy Fortresses

Build your fortress, then raid other players' bunkers via Steam. Challenge friends directly or find opponents through the quickmatch queue.

Key Features

Deep base-building with power, air, water, and morale simulation

Billions of weapon, defence, and cyber-warfare combinations via three full synthesis systems

Real-time tactical combat with dozens of weapon systems

10 enemy factions each with capturable unique weapons

Research tree spanning 75 technologies across 7 doctrinal branches

Steam multiplayer, fortress raiding, and PvP battles

Retro pixel art with phosphor-green military UI