Obby: Dig to the center of the Earth

By Serbull

Obby: Dig to the center of the Earth drops you into a blocky world with one job: break the ground under your feet and keep going down. A depth meter on the right tracks your progress from the surface toward the 1M mark, while cash and trophies tick up in the corner. It runs free in your browser on desktop and mobile, with no download.

Game info

Developer: Serbull
Rating: Not yet rated
Release date: Sep 23, 2025
Last updated: Sep 28, 2026
Technology: Unity WebGL
Platforms: Web Browser (Desktop, Mobile)

Controls

Keyboard & mouse

WASD — move your character
Right mouse button — rotate the camera
Left mouse button — dig and interact

Touch

Joystick — move your character
On-screen button — jump
Drag/tilt sensor — rotate the camera

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How to Play Obby: Dig to the center of the Earth

You start on a sunny island surface and dig straight into the dirt. Every block you break pays out money, shown on the green counter at the top left, and the tutorial box walks you through your first goal — earning 200 money. An AUTO DRILL toggle keeps you boring downward, and a BACK TO THE SURFACE button pulls you out when you want to spend what you've collected.

Cash goes into your gear. The DRILLS menu upgrades the tool you dig with, which matters because each deeper layer of earth is tougher than the one above and needs more power to break. The PETS menu holds hatched companions — the panel shows an equip slot limit (0/3) and storage (00/50), and each pet lists a percentage bonus to what you earn. Egg stands on the surface, priced in money, hatch new ones.

A WORLDS button opens further areas, and the right-hand column lists other players by depth, so your position on the leaderboard depends on how far down you've managed to drill.

Tips

Watch the depth scale on the right edge — the numbers climb from 0 to 1M, so you can see exactly how far a drill upgrade gets you before it stalls.
Spend early money on drill upgrades; deeper layers resist weaker tools, and slow digging costs you leaderboard position.
Open the PETS menu and equip before you dive — pets sit idle in storage until equipped, and the EQUIP BEST button fills your three slots fast.
Use BACK TO THE SURFACE instead of climbing out manually when you have money to spend on eggs or upgrades.
Turn on AUTO DRILL for long vertical stretches so you keep earning while you line up your next purchase.

Features

Dig straight down through layered earth, each layer tougher than the last
Drill upgrades and unlockable tools bought with collected currency
Hatchable pets that boost loot and digging speed, with limited equip slots
Multiple worlds to unlock from the WORLDS menu
A depth leaderboard comparing you with other diggers

Frequently Asked Questions

Is Obby: Dig to the center of the Earth free?

Yes, it's completely free to play in your browser with no download or install.

Can I play it on my phone?

Yes, it works on mobile as well as desktop. On a phone you move with an on-screen joystick, tap a button to jump and swing the camera using the device sensor. It's built for landscape, so turn your phone sideways.

Who made this game?

It was developed by Serbull and released in 2025, built with Unity WebGL so it runs directly in the browser.

How deep can I dig?

The depth meter on the right side of the screen runs down to the 1M mark at the bottom, and tougher layers along the way need stronger drills to break through.

What do pets actually do?

Pets give loot bonuses and speed up your digging. You hatch them from eggs found on the surface, then equip them from the PETS menu — the panel shows three equip slots and each pet's percentage bonus.