Dig forever. Lose nothing.
A spiritual successor to Motherload. Drop a mining rig into one vast, procedurally-generated planet, dig for richer ore the deeper you go, and gamble your fuel against how far down you dare push before the long climb back.

Everything you see here is work-in-progress art. It is rough placeholder work, thrown together to show the idea while the game is built. Almost none of it is final, and most of it will change before release.
The dig loop, modernized.
Understrata is the studio’s second game, and it is deep in the making. It takes the part of Motherload (2004) that still holds up, the white-knuckle descent with your fuel bleeding away while the ore gets richer and the way back gets longer, and rebuilds everything else around it.
You pilot a mining rig down into one enormous planet. Dig for ore, ration your fuel, and read the rock for what is coming. Push too far and the descent ends in a wreck. Judge it right and you surface heavier and richer than you dropped in, then cash the haul into a deeper drill and a bigger tank and drop straight back down, a little further this time.
Two pillars hold up everything.
Bank it or lose it
The deeper you push, the richer the ore and the longer the climb back. Reach the surface and sell, and the haul is yours for good. Run the tank dry or crack the hull on the way up and the whole load is gone. The pilot always ejects; the cargo does not. Knowing when to turn back, run after run, is the game.
One endless planet
No fresh map each run. You descend into a single procedurally-generated world and carve it deeper over a lifetime of dives. The tunnels you cut stay cut, the strata keep going down, and there is no bottom to hit. Every trip picks up where the last shaft left off.
How deep do you dare?
Every descent asks the same question, again and again: push one stratum deeper for richer ore, or turn back while you still have the fuel to climb out. Reading that moment right, run after run, is the game.
Fuel is the clock
The tank starts draining the moment you drop. Run it dry, or crack the hull too deep to climb out, and the run is over right there.
The extraction gamble
Turn back now, or sink one more stratum with the payout multiplier still climbing. Weighing that call, over and over, is the whole game.
Read the rock
Lava sits in the deep strata, and worse is on the way. Every hazard has a tell and a counter, so a death is a misread, never a coin flip.
Weight you feel
Deeper ore is heavier and worth more. A loaded bay drags on the climb, so how much you grab before turning back is a decision in itself.
A rig you rebuild
Cash the haul into a deeper drill, a fatter tank, a tougher hull. Every upgrade is bought outright. Nothing is rolled for or gated behind a lottery.
No FOMO, no dailies
Nothing is timed and nothing waits to punish you for stepping away. The only pressure in the game is the pressure you choose underground.
Five ores down the ladder.
Each stratum runs deeper, harder, and richer. Shallow ore is cheap and light; the deep stuff is heavy, rare, and worth the wager to haul back up.
The surface outpost.
Every run ends back on the surface. Sell the haul at the processor, refuel and patch up at the fuel station, buy rig upgrades at outfitting, stock consumables at the item shop, and put whatever is left into growing the town itself. The museum fills with the finds you dig out of the deep, and the contracts board tracks the standing jobs the crew posts. Progression is deterministic: no blueprint lotteries, ever.
The people you dig for.
Three people run the outpost. They post the standing contracts you take on, and their voices come in over the radio as you push past your deepest mark. The further down you get, the more they stop talking about ore and start talking about the rock.
Foreman Reyes
Hands you the drill on your first descent, then watches your fuel and your depth and tells you when to climb out.
Quartermaster Idris
Buys every haul you bring up. Dry, a little bored, and unconvinced by the old survey that called this rock barren.
Archivist Wen
Logs every find you recover, and keeps noticing that the deep strata run stranger than rock should.
In development, and playable.
The core loop is already up and running: drop in, dig, haul it up, sell it, upgrade, and drop back down a little further. The world, the surface town, and the first biting hazards are all in. It is one developer's spare-hours project, and it moves every week. The devlog is the best place to watch it come together.
Development, in the open.
Understrata: you were not the first
Since the crew got faces they have been digging up proof that someone worked this rock long before you did. Cut rails, a sealed door, a claim stake older than the claim itself. The deep grew a mystery, and a Museum to hold it.
Understrata: the crew has faces now
Last update the surface crew started talking over the radio. This update they get faces. Meet Foreman Reyes, Quartermaster Idris, and Archivist Wen, and watch all nine of their talking loops at once.
Understrata: signals from the deep
The deep opens into caverns, buried finds go on display in a town museum, and the surface crew starts talking. Understrata gets its story.
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