Games like Under the Earth
Games like Under the Earth include Cookie Clicker, Shelldiver, Click the Button, Keep on Mining!, and To The Core. We matched them by the tags players give Under the Earth on Steam (Casual, Incremental, Idler, 2D, and Hand-drawn): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Incremental · Idler · Casual

Shelldiver
Shared: Casual · Incremental · Idler

Click the Button
Shared: Casual · Incremental · Idler

Keep on Mining!
Shared: Incremental · Casual · Idler

To The Core
Shared: Casual · Incremental · 2D

Horripilant
Shared: Incremental · Idler · Casual

Idle Champions of the Forgotten Realms
Shared: Idler · Incremental · Casual

Fortune Mill
Shared: Incremental · Idler · Casual

Nodebuster
Shared: Casual · Incremental · Idler

Tiny Pasture
Shared: Idler · Incremental · Casual

Digseum
Shared: Casual · Incremental · Idler

A Game About Feeding A Black Hole
Shared: Casual · Incremental · Idler

Tower Wizard
Shared: Incremental · Idler · 2D

Chef Knight
Shared: Incremental · Casual · Idler

Timberman
Shared: Casual · Pixel Graphics · 2D

Timber Rush
Shared: Casual · Idler · Incremental

Click and Conquer
Shared: Casual · Incremental · Idler

Dragon Cliff
Shared: Idler · Incremental · Casual

Vampire Survivors
Shared: 2D · Pixel Graphics · Casual

Melvor Idle
Shared: Casual · Idler · 2D

(the) Gnorp Apologue
Shared: Incremental · Idler · Casual

Gorogoa
Shared: Hand-drawn · Casual · Indie

Cornerpond
Shared: Incremental · Idler · Casual

Click Mage
Shared: Incremental · Casual · Pixel Graphics