Does it keep earning while I'm away?

It does. Your helpers earn Gravel passively, and you'll collect capped offline earnings when you return.

How do I earn faster?

Buy more buildings, purchase Boosts, and ascend to bank Cube Gems — each one permanently multiplies your output.

What does ascending (prestige) do?

Ascending resets your Gravel and buildings but grants Cube Gems that boost every future run, so you grow much faster.

Can I play on my phone?

Yes, it's fully touch-friendly and works on phones, tablets and desktops with one-tap controls.

Is my progress saved?

Your progress saves automatically in your browser, so you can close the tab and pick up right where you left off.

👆 Wombat Burrow Builder

📖 View Web Story

Wombat Burrow Builder drops you into a sprawling outback burrow network and dares you to build the sturdiest gravel empire on the web. It all starts with a single tap on the tunnel: each press mints a little Gravel, and Wombats dig cube-shaped tunnels, so the deeper you go the blockier the loot.Spend what you earn to hire helpers like Little Wombats, Busy Wombats and eventually Cosmic Wombats. They keep working even after you stop tapping, so your Gravel ticks up every single second — close the tab and you'll come back to a tidy pile of offline earnings. Stack boosts such as the "tunnel Festival" to multiply everything, then chase achievements that hand you a permanent edge.When growth slows, ascend to bank Cube Gems: each one you hold quietly supercharges all future runs, turning a slow start into an avalanche. It is built to play itself while you watch the counters climb, and it runs instantly in your browser on phone, tablet or desktop — no download, no sign-up. Fire up Wombat Burrow Builder, find your rhythm, and see how big an empire gravel can buy.

How to play

Tap or click the tunnel (or press Space) to earn your first Gravel.
Open the Buildings tab and buy Little Wombats to start earning Gravel automatically.
Reinvest into stronger helpers like Turbo Wombats and Cosmic Wombats as costs climb.
Grab Boosts and unlock achievements to multiply how much Gravel you make.
When progress slows, hit Ascend to bank Cube Gems for a permanent boost, then climb faster.

Controls

Tap or click the subject to earn (Space or Enter also taps). Press number keys 1–9 to buy buildings, P to ascend and M to mute. Fully playable with touch on mobile.

Features

Sturdiest gravel theme set in a sprawling outback burrow network
Five upgradeable helpers from Little Wombats to Cosmic Wombats, each with its own boosts
Idle income that keeps earning while the tab is closed, with capped offline catch-up
Prestige system: ascend to bank Cube Gems for a permanent, stacking multiplier
Achievements, satisfying tap combos, sound effects and an automatic local save