Underground: Bunker Survival

The world has fallen. You are the last hope for those knocking at your gates.

Underground is a deep bunker-management sim where every decision echoes through your food, water, power — and your people's spirits. Build compartments across three floors, take in survivors at the airlock, keep your resources in balance, and don't let the bunker go dark.

What's waiting for you:

• A living bunker — 40+ compartment types: generator room, farm, med bay, laboratory, armory, district map, the old metro and more. Every room works differently and demands your attention.

• Resources with consequences — power, water, food, air, parts, fuel. Run out of water and newcomers will walk right past your gates. Overheat the generator and an accident is only a matter of time.

• People, not numbers — every resident has skills, health, stress and relationships. Quarrels, illness, theft, panic — incidents won't wait: you have limited time to solve a problem before it gets worse.

• Arrivals at the gate — survivors keep coming to the airlock. Let them in, turn them away, or send them off with rations? Your bunker's reputation decides who shows up tomorrow.

• Your own path — fortress, radio contact, autonomy, science, evacuation or a return to the surface. Goals will show you where to grow next.

• The metro and recon — explore the tunnels, gather loot, trade with friends and fight off threats in the corridors.

• Mini-games that matter — harvest crops, repair equipment, calm a panic: quick games earn resources and change how events end.

• Friends in the game — add friends, meet their survivors at your gates, exchange resources and earn bonuses for playing together.

• Play at your own pace — minimize the app and time in the bunker stops. Come back and pick up right where you left off.

Who this game is for: If you love Fallout Shelter, This War of Mine, or management games with personality — this one is full of "what if I try it this way?" moments. Not a five-minute arcade, but a bunker that grows with you.

Download. Open the airlock. Decide who gets in first.

What’s new

DIRECTIVE 1.28 — BULLETIN FOR ALL POSTS

You can skip a day. Tap the clock in the header to open "Skip a day." The shelter lives through a whole day in a couple of seconds, just as if the game were open: compartments work, construction and upgrades progress, residents eat and drink, newcomers reach the gate. The window shows in advance what will finish and whether food and water will last, and sums everything up afterward.

The price depends on what's running. An empty day costs 30 parts. Every construction, installation, course or job that finishes within the day adds exactly what the Rush button would charge. The breakdown is right there in the window, capped at 150 parts.

The call is yours. A skipped day is a quiet one: no new compartment events, no enemies from the metro or the airlock. But what has already happened stays: unresolved events go wrong over the day, enemies do damage, a crisis or hunger takes its toll. The window lists all of it before you tap, and then it's your decision. The skip runs to the end and never stops.

Buttons always at hand. The bell, the Guidebook and settings no longer disappear from the map if the game was closed with a compartment window open.

Numbers read right. Parts, warehouse slots and built rooms now take proper English plurals: "21 parts," not "21 part."

The store tells it straight. The parts crate description now mentions HQ cargo: whatever doesn't fit in the warehouse arrives on its own as space frees up.

Hold fast, Overseer.