Games like Philosophers Lab
Games like Philosophers Lab include Slime Rancher, VRChat, Garry's Mod, BeamNG.drive, and The Scroll of Taiwu : Beyond The Dome. We matched them by the tags players give Philosophers Lab on Steam (Sandbox, Simulation, Artificial Intelligence, First-Person, and Open World): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: First-Person · Sandbox · Open World

VRChat
Shared: VR · First-Person · Simulation

Garry's Mod
Shared: Sandbox · First-Person · Casual

BeamNG.drive
Shared: Simulation · Sandbox · Open World

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · Open World · Simulation

Stardew Valley
Shared: Simulation · Sandbox · Open World

Goat Simulator
Shared: Simulation · Sandbox · Open World

My Time at Portia
Shared: Simulation · Open World · Casual

Everything
Shared: Simulation · Sandbox · Philosophical

Paralives
Shared: Simulation · Sandbox · Open World

Thief Simulator
Shared: Simulation · First-Person · Open World

Elite Dangerous
Shared: Simulation · Open World · VR

X-Plane 11
Shared: Simulation · Open World · VR

My Summer Car
Shared: Simulation · Open World · First-Person

SPORE™
Shared: Sandbox · Simulation · Open World

The Long Dark
Shared: Open World · First-Person · Sandbox

Mount & Blade II: Bannerlord
Shared: Sandbox · Open World · Simulation

Kenshi
Shared: Sandbox · Open World · Simulation

House Flipper
Shared: Simulation · Sandbox · Casual

PC Building Simulator
Shared: Simulation · Sandbox · First-Person

Streamer Life Simulator 2
Shared: Simulation · First-Person · Open World

Gold Mining Simulator
Shared: Simulation · Sandbox · Open World

Hard Bullet
Shared: Sandbox · VR · Simulation

Internet Cafe Simulator 2
Shared: Simulation · Sandbox · First-Person