Games like Lost & Found
Games like Lost & Found include Slime Rancher, Slime Rancher 2, MiSide, Blue Prince, and A Story About My Uncle. We matched them by the tags players give Lost & Found on Steam (Simulation, Shop Keeper, Investigation, First-Person, and Story Rich): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: First-Person · Singleplayer · Simulation

Slime Rancher 2
Shared: First-Person · Singleplayer · Simulation

MiSide
Shared: Story Rich · First-Person · Singleplayer

Blue Prince
Shared: Investigation · Story Rich · First-Person

A Story About My Uncle
Shared: First-Person · Singleplayer · Adventure

Totally Accurate Battle Simulator
Shared: Simulation · Singleplayer · Fantasy

The Witcher 3: Wild Hunt — Remastered
Shared: Story Rich · Fantasy · Singleplayer

PowerWash Simulator
Shared: Simulation · First-Person · 3D

Fresh Start Cleaning Simulator
Shared: First-Person · Simulation · 3D

Kingdom Come: Deliverance II
Shared: Story Rich · First-Person · Singleplayer

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

Electrician Simulator
Shared: Simulation · First-Person · Singleplayer

House Flipper
Shared: Simulation · Singleplayer · First-Person

BioShock Infinite
Shared: First-Person · Story Rich · Singleplayer

Firewatch
Shared: Story Rich · First-Person · Adventure

Clair Obscur: Expedition 33
Shared: Story Rich · Fantasy · Singleplayer

Thief Simulator
Shared: Simulation · First-Person · Singleplayer

Disney Dreamlight Valley
Shared: Simulation · Fantasy · Adventure

I Am Jesus Christ
Shared: Simulation · Fantasy · First-Person

Avowed
Shared: First-Person · Fantasy · Singleplayer

Contraband Police
Shared: Simulation · First-Person · Singleplayer

TCG Card Shop Simulator
Shared: Simulation · Singleplayer · Shop Keeper

Orwell: Keeping an Eye On You
Shared: Simulation · Investigation · Story Rich

Fell & Sell
Shared: Simulation · Shop Keeper · Fantasy