Games like Poor Man's Adventure: Narco Sub Simulator
Games like Poor Man's Adventure: Narco Sub Simulator include Schedule I, Warhammer 40,000: Space Marine 2, Thief Simulator, Farming Simulator 25, and God of War Ragnarök. We matched them by the tags players give Poor Man's Adventure: Narco Sub Simulator on Steam (Simulation, Action-Adventure, Colony Sim, Underwater, and Submarine): closest matches first, and among equally close ones the better-known games.

Schedule I
Shared: Simulation · Crime · Automation

Warhammer 40,000: Space Marine 2
Shared: Action-Adventure · Adventure · Third-Person Shooter

Thief Simulator
Shared: Simulation · Crime · Adventure

Farming Simulator 25
Shared: Simulation · 3D · Building

God of War Ragnarök
Shared: Action-Adventure · Adventure · Action

Crime Scene Cleaner
Shared: Simulation · Crime · First-Person

Prison Escape Simulator: Dig Out
Shared: Simulation · Crime · Action-Adventure

Flashing Lights - Police, Firefighting, Emergency Services (EMS) Simulator
Shared: Simulation · Adventure · Crime

Judgment
Shared: Action-Adventure · Adventure · Action

Drug Dealer Simulator
Shared: Simulation · Crime · Action

Planet Coaster
Shared: Simulation · Building · Adventure

Assassin's Creed Black Flag Resynced
Shared: Action-Adventure · Pirates · Adventure

A Plague Tale: Requiem
Shared: Action-Adventure · Adventure · Action

Tomb Raider Game of the Year
Shared: Adventure · Action-Adventure · Action

Prison Architect
Shared: Simulation · Colony Sim · Building

Grand Theft Auto: Vice City – The Definitive Edition
Shared: Action-Adventure · Adventure · Crime

PC Building Simulator
Shared: Simulation · Building · 3D

Resident Evil Requiem
Shared: Action-Adventure · Third-Person Shooter · Action

Dyson Sphere Program
Shared: Automation · Simulation · Building

Feed and Grow: Fish
Shared: Simulation · Underwater · Adventure

Timberborn
Shared: Colony Sim · Automation · Building

RoadCraft
Shared: Simulation · Building · Automation

Grand Theft Auto III – The Definitive Edition
Shared: Action-Adventure · Adventure · Crime

Astro Colony
Shared: Colony Sim · Automation · Simulation