Games like PunchMonkey
Games like PunchMonkey include Cookie Clicker, Chillquarium, Shelldiver, Digseum, and Nodebuster. We matched them by the tags players give PunchMonkey on Steam (Idler, Collectathon, Incremental, Casual, and Simulation): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Idler · Incremental · Casual

Chillquarium
Shared: Collectathon · Idler · Incremental

Shelldiver
Shared: Incremental · Casual · Idler

Digseum
Shared: Idler · Incremental · Casual

Nodebuster
Shared: Incremental · Idler · Casual

Placid Plastic Duck Simulator
Shared: Collectathon · Casual · Cute

Click the Button
Shared: Idler · Casual · Incremental

Keep on Mining!
Shared: Idler · Incremental · Casual

Plantera
Shared: Idler · Incremental · Collectathon

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

Tiny Pasture
Shared: Idler · Incremental · Casual

MyVoiceZoo
Shared: Casual · Simulation · Idler

Leaf it Alone
Shared: Incremental · Simulation · Casual

Click and Conquer
Shared: Incremental · Idler · Casual

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

Cell to Singularity - Evolution Never Ends
Shared: Incremental · Idler · Simulation

Budgie's Bug Shop
Shared: Idler · Incremental · Casual

Kiwi Clicker - Juiced Up
Shared: Incremental · Idler · Casual

How to Train Your Cock
Shared: Idler · Casual · Incremental

Croakoloco
Shared: Idler · Incremental · Casual

Loot Loop
Shared: Incremental · Idler · Casual

Cozy Grove
Shared: Collectathon · Cute · Cozy

Insaniquarium Deluxe
Shared: Casual · Incremental · Simulation

Passpartout: The Starving Artist
Shared: Casual · Simulation · Relaxing