Flatten The Mountain in Roblox: How to Clear All 89 Layers Faster

Flatten The Mountain, from DomBox Games, drops a 534-meter rock on a Roblox beach and asks you to remove all of it. There is no shortcut around the block count — the entire mountain has to come down layer by layer — but the gap between a slow run and a fast one is enormous. A first attempt with basic upgrades lands around 51 minutes. The same mountain falls in roughly 33 minutes once the automation and pickaxe economy are working for you.

Quick answer: Buy Drone I and Turret I as soon as you can afford them, push Damage and Mine Speed early, grab Auto Mine the moment it appears, and bank the 400 gems from a full clear to buy the 396-gem Storm Hammer — its Thundercall proc instantly destroys 5 percent of the blocks you hit on every later run.

How the 534m mountain is structured

The mountain is not a single mass. It is a stack of horizontal layers, each one 6 meters tall, which works out to 89 layers from the summit down to the sand. You always work top-down, and clearing a full layer triggers a “LAYER 1 CLEARED” banner with the count ticking up as you descend. That banner is the only progress marker worth watching, since the height number alone hides how much block volume is left.

Flatten The Mountain gameplay showing the LAYER 1 CLEARED banner over a flat rocky platform — The “LAYER 1 CLEARED” banner is the run’s real progress meter. Image: DomBox Games

A complete clear is roughly 9,400 blocks. That number matters more than the meter count, because every upgrade you buy is measured against how many blocks per second it removes.

Opening sequence for a fast run

Start swinging manually. The tutorial asks you to click a block until it breaks, and the first few dollars have to come from your own pickaxe. Don’t wander — clear a contiguous patch so the top layer finishes cleanly.

Tutorial prompt telling the player to click a ground block with the pickaxe until it breaks — The opening tutorial: click a block until it breaks to earn your first cash. Image: DomBox Games

Spend your first dollar on Damage I, which raises each swing to remove 3 voxels. This is the cheapest thing in the game and it changes how quickly you reach the drone threshold.

At $5, open the Drones menu and buy Drone I. The drone joins you and mines the layer top-down on its own, so it keeps earning while you reposition or deal with hazards. You can eventually field up to seven.

Add Turret I once you clear about $23. Turrets orbit the mountain and beam the block ahead of them, and their Orbit Speed upgrades run from 16 deg/s at rank I up to 36 deg/s at rank IV. Faster orbit means more blocks touched per pass. Turrets also cap at seven.

Alternate Mine Speed and Damage on your own character while the automation runs. Mine Distance I is worth grabbing too, since mining from 18 studs away lets you strip blocks without climbing down to them.

Buy Auto Mine as soon as it unlocks, which happens around the $200 mark. It lets you hold the button instead of click-spamming, though you still have to aim. Everything after this point is a scaling problem rather than an endurance problem.

Ore values and cash income

Cash comes from plain stone in small amounts and from ore blocks in large ones. Ore density rises as you go deeper, which is why income accelerates sharply after the first 20 or so layers even though the block count per layer stays roughly constant.

Ore	Payout
Coal	Early-layer filler income
Gold	+$40
Sapphire	+$40
Emerald	+$80
Ruby	+$160
Diamond	+$320

A gold ore block highlighted mid-swing while the player mines it with an equipped pickaxe — Gold blocks pay $40 each and start appearing well before the halfway point. Image: DomBox Games

Two power-ups appear during runs and both are worth chaining with ore-heavy layers. The 2X Money buff doubles payouts while active, and Mining Speed x1.5 raises your clear rate. Save them for a stretch of layers you can visibly see is dense with ore rather than burning them on stone.

Gems, buried chests, and the Storm Hammer

Cash is spent inside a run and disappears when it ends. Gems are the currency that carries over, and pickaxes are what they buy. Buried chests spawn randomly inside layers and award 50 gems each when you open them, so it is worth breaking blocks that look like they are hiding something rather than routing around them.

Buried chest with an on-screen prompt showing the F key to open it — Buried chests use an F prompt to open and pay out 50 gems. Image: DomBox Games

A full clear of the mountain paid out 400 gems on a first attempt, which is enough to cover the Storm Hammer at 396. The lobby shop also stocks the Stone Pick, Glitch Pick, Nature Pick, Angel Pick, and Lava Pick, but the Storm Hammer is the legendary tier and the one that changes run times. Its Thundercall passive gives 5 percent of your hits a chance to call down lightning that destroys the block outright, skipping its remaining health entirely.

Note: 5 percent sounds small until you multiply it across roughly 9,400 blocks. Over a full mountain that is hundreds of blocks removed in a single hit each.

Hazards and stalls that cost you time

Eagles fly across the mountain periodically and damage your HP on contact, announced by an “EAGLE INCOMING!” warning. They cannot be killed for profit, so treat them as pure downtime and step out of the flight path when the alert appears.

The other stall shows up near the bottom, where blocks can render as glitched or invisible while still occupying space. They still break normally when you aim at them, so keep swinging at the outlined tile even if nothing appears to be there. The layer counter is the reliable confirmation that it registered.

A single outlined platform tile highlighted as the player targets it near the bottom layers — Near the sand, target the outlined tile even when the block itself does not render. Image: DomBox Games

What a Storm Hammer run actually saves

The difference between a stock run and a geared one is close to 18 minutes on the same 534-meter mountain, with cash earnings more than doubling because the ore layers get cleared faster and under better multipliers.

Result	First run	Storm Hammer run
Time completed	51:15	33:24
Blocks mined	9,386	Full mountain
Gems earned	400	500
Cash earned	$53,740	$114,947

You know the run is finished when the “MOUNTAIN FLATTENED!” screen appears with your time, block count, gems, and cash. A 33:24 clear was enough to place 9th on the solo leaderboard, so anything under the mid-30s is competitive territory.

The practical takeaway is that the first run is an investment, not an attempt at a time. Get through it however you can, bank the gems, buy the Storm Hammer, and treat every run after that as the real one.