Games like Pop An Old Man
Games like Pop An Old Man include Cookie Clicker, Goat Simulator, Youtubers Life, Totally Accurate Battle Simulator, and Russian Life Simulator. We matched them by the tags players give Pop An Old Man on Steam (Collectathon, Simulation, Adventure, Memes, and Casual): closest matches first, and among equally close ones the better-known games.

Cookie Clicker
Shared: Casual · Idler · Collectathon

Goat Simulator
Shared: Simulation · Comedy · Casual

Youtubers Life
Shared: Simulation · Casual · Adventure

Totally Accurate Battle Simulator
Shared: Simulation · Adventure · Strategy

Russian Life Simulator
Shared: Simulation · Memes · Casual

There Is No Game: Wrong Dimension
Shared: Adventure · Casual · Comedy

Mr.President!
Shared: Memes · Simulation · Adventure

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

Game Dev Tycoon
Shared: Simulation · Casual · Indie

Nodebuster
Shared: Simulation · Casual · Idler

Librarian: Tidy Up the Arcane Library!
Shared: Collectathon · Casual · Simulation

Internet Cafe Simulator 2
Shared: Simulation · Memes · Adventure

Shelldiver
Shared: Casual · Simulation · Idler

Wobbly Life
Shared: Adventure · Simulation · Casual

Chinese Parents
Shared: Simulation · Memes · Casual

Click the Button
Shared: Casual · Simulation · Idler

There's Poop In My Soup
Shared: Memes · Casual · Comedy

Summon
Shared: Simulation · Memes · Hidden Object

That's not my Neighbor
Shared: Adventure · Casual · Simulation

The Henry Stickmin Collection
Shared: Memes · Comedy · Adventure

Cart Racer
Shared: Adventure · Casual · Comedy

Chained Together
Shared: Adventure · Casual · Simulation

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Casual · Simulation · Arcade

Who's Your Daddy?!
Shared: Simulation · Comedy · Casual