Games like Mining Copper
Games like Mining Copper include Keep on Mining!, Fracture Field, Cookie Clicker, Starvester, and (the) Gnorp Apologue. We matched them by the tags players give Mining Copper on Steam (Idler, Mining, Resource Management, Word Game, and Automation): closest matches first, and among equally close ones the better-known games.

Keep on Mining!
Shared: Idler · Mining · Incremental

Fracture Field
Shared: Idler · Mining · Incremental

Cookie Clicker
Shared: Idler · Incremental · Resource Management

Starvester
Shared: Idler · Incremental · Resource Management

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

Fortune Mill
Shared: Idler · Incremental · Automation

Bills Must Be Paid
Shared: Incremental · Idler · Capitalism

Shelldiver
Shared: Resource Management · Idler · Incremental

Dyson Sphere Program
Shared: Automation · Resource Management · Sci-fi

Tower Wizard
Shared: Idler · Resource Management · Incremental

Keep on Mining! - Worlds
Shared: Idler · Mining · Incremental

Moose Miners
Shared: Idler · Incremental · Mining

Incredicer
Shared: Idler · Incremental · Resource Management

Scritchy Scratchy
Shared: Idler · Resource Management · Incremental

Digseum
Shared: Idler · Incremental · Mining

Hydroneer
Shared: Mining · Automation · Resource Management

Click the Button
Shared: Idler · Incremental · Casual

Factorio
Shared: Resource Management · Automation · Strategy

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

Dwarf Eats Mountain
Shared: Idler · Mining · Incremental

Banana
Shared: Incremental · Idler · Casual

xiuzhen idle
Shared: Idler · Word Game · Incremental

Melvor Idle
Shared: Idler · Mining · Automation

Captain of Industry
Shared: Resource Management · Automation · Mining