Games like dig
Games like dig include To The Core, Nodebuster, A Game About Feeding A Black Hole, Cookie Clicker, and Oik. We matched them by the tags players give dig on Steam (Casual, Incremental, 2D, Linear, and Minimalist): closest matches first, and among equally close ones the better-known games.

To The Core
Shared: Casual · Incremental · 2D

Nodebuster
Shared: Casual · Incremental · 2D

A Game About Feeding A Black Hole
Shared: Casual · Incremental · 2D

Cookie Clicker
Shared: Incremental · Casual · 2D

Oik
Shared: Casual · Incremental · 2D

Keep on Mining!
Shared: Incremental · Casual · 2D

Oik 2
Shared: Casual · Incremental · Minimalist

Digseum
Shared: Casual · Incremental · Minimalist

Shelldiver
Shared: Casual · Incremental · 2D

Russian Life Simulator
Shared: Incremental · 2D · Casual

Zup! S
Shared: Casual · 2D · Minimalist

Hook
Shared: Casual · Minimalist · 2D

Incredibox
Shared: Casual · 2D · Stylized

Click and Conquer
Shared: Casual · Incremental · Minimalist

Gorogoa
Shared: Casual · Atmospheric · Singleplayer

LIMBO
Shared: 2D · Atmospheric · Dark

Unfair Flips
Shared: Casual · Incremental · 2D

Space Rock Breaker
Shared: Casual · Incremental · 2D

inbento
Shared: Casual · 2D · Linear

Deep Space Cache
Shared: Casual · Incremental · 2D

Wild Growth
Shared: Incremental · Casual · 2D

klocki
Shared: Casual · Minimalist · 2D

Happy Game
Shared: Casual · Atmospheric · Dark

Loot Loop
Shared: Casual · Incremental · 2D