Games like Questmonger
Games like Questmonger include Papers, Please, Touhou Mystia's Izakaya, Unpacking, Retro Rewind - Video Store Simulator, and Game Dev Tycoon. We matched them by the tags players give Questmonger on Steam (Casual, Simulation, Point & Click, Shop Keeper, and Immersive Sim): closest matches first, and among equally close ones the better-known games.

Papers, Please
Shared: Simulation · Point & Click · Pixel Graphics

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

Unpacking
Shared: Casual · Simulation · Pixel Graphics

Retro Rewind - Video Store Simulator
Shared: Simulation · Shop Keeper · Casual

Game Dev Tycoon
Shared: Simulation · Casual · 2D

Click the Button
Shared: Casual · Simulation · Point & Click

Chill Pulse
Shared: Casual · Simulation · Point & Click

Sticky Business
Shared: Casual · Simulation · Cute

Digseum
Shared: Casual · Simulation · Point & Click

Papa's Freezeria Deluxe
Shared: Simulation · Casual · Time Management

Cookie Clicker
Shared: Casual · Pixel Graphics · 2D

Organized Inside
Shared: Casual · Simulation · Point & Click

King of Retail
Shared: Casual · Simulation · Immersive Sim

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

Thrifty Business
Shared: Casual · Simulation · Shop Keeper

Mudborne: Frog Management Sim
Shared: Casual · Simulation · Immersive Sim

Shelldiver
Shared: Casual · Simulation · 2D

Discounty
Shared: Simulation · Shop Keeper · Casual

112 Operator
Shared: Simulation · Casual · Time Management

Placid Plastic Duck Simulator
Shared: Casual · Simulation · Immersive Sim

BidKing
Shared: Casual · Simulation · Shop Keeper

Stardew Valley
Shared: Simulation · Pixel Graphics · Casual

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Simulation

Is This Seat Taken?
Shared: Casual · Cute · Point & Click