Games like Mystery Digger: Definitive Edition
Games like Mystery Digger: Definitive Edition include Papers, Please, A Game About Digging A Hole, Five Nights at Freddy's: Into the Pit, Hollow Knight, and American Truck Simulator. We matched them by the tags players give Mystery Digger: Definitive Edition on Steam (Side Scroller, Exploration, Simulation, Mining, and Automobile Sim): closest matches first, and among equally close ones the better-known games.

Papers, Please
Shared: Simulation · Indie · Multiple Endings

A Game About Digging A Hole
Shared: Exploration · Mining · Simulation

Five Nights at Freddy's: Into the Pit
Shared: Exploration · 2D · Pixel Graphics

Hollow Knight
Shared: Exploration · 2D · Indie

American Truck Simulator
Shared: Automobile Sim · Simulation · Exploration

DAVE THE DIVER
Shared: Exploration · Pixel Graphics · Simulation

Keep Driving
Shared: Exploration · Pixel Graphics · Indie

Rain World
Shared: Exploration · Indie · 2D

鬼谷八荒 Tale of Immortal
Shared: Simulation · Exploration · Action

Hollow Knight: Silksong
Shared: Indie · Exploration · 2D

Skul: The Hero Slayer
Shared: Indie · 2D · Action

Terraria
Shared: 2D · Exploration · Pixel Graphics

OneShot
Shared: Indie · Pixel Graphics · Exploration

Wall World
Shared: Mining · Exploration · Pixel Graphics

Euro Truck Simulator 2
Shared: Simulation · Automobile Sim · Exploration

Dungeon Munchies
Shared: Indie · Action · 2D

Broforce
Shared: 2D · Side Scroller · Action

Gold Mining Simulator
Shared: Simulation · Mining · Indie

SnowRunner
Shared: Simulation · Automobile Sim · Exploration

Hyper Light Drifter
Shared: Indie · Exploration · Pixel Graphics

UNREAL LIFE
Shared: Side Scroller · Exploration · Indie

Momodora: Reverie Under The Moonlight
Shared: Side Scroller · Exploration · 2D

SANABI
Shared: Pixel Graphics · Action · 2D

Reventure
Shared: Indie · 2D · Multiple Endings