Games like Arcanum Idle
Games like Arcanum Idle include Cookie Clicker, Click the Button, Papers, Please, Digseum, and Nodebuster. We matched them by the tags players give Arcanum Idle on Steam (Idler, Simulation, Incremental, Point & Click, and 2D): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Idler · Incremental · Casual

Click the Button
Shared: Idler · Incremental · Simulation

Papers, Please
Shared: Simulation · Point & Click · Indie

Digseum
Shared: Idler · Incremental · Simulation

Nodebuster
Shared: Incremental · Idler · Simulation

Horripilant
Shared: Idler · Incremental · Simulation

Shelldiver
Shared: Incremental · Idler · Casual

Fortune Mill
Shared: Idler · Incremental · Simulation

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

Tower Wizard
Shared: Idler · Incremental · 2D

Click and Conquer
Shared: Incremental · Simulation · Idler

Dragon Cliff
Shared: Idler · Incremental · Casual

Game Dev Tycoon
Shared: Simulation · Indie · Casual

Melvor Idle
Shared: Idler · Casual · 2D

Tiny Pasture
Shared: Idler · Incremental · Casual

Keep on Mining!
Shared: Idler · Incremental · Casual

There Is No Game: Wrong Dimension
Shared: Point & Click · Indie · Pixel Graphics

Loot Loop
Shared: Incremental · Simulation · Idler

Russian Life Simulator
Shared: Simulation · Incremental · 2D

Touhou Mystia's Izakaya
Shared: Simulation · Casual · Pixel Graphics

Wild Growth
Shared: Incremental · 2D · Casual

Chill Pulse
Shared: Idler · Simulation · Casual

Cornerpond
Shared: Idler · Incremental · Simulation

Maltese's Fluffy Onsen
Shared: Simulation · Idler · Pixel Graphics