Games like It's Titanic 3
Games like It's Titanic 3 include PC Building Simulator, BeamNG.drive, Totally Accurate Battle Simulator, Car Mechanic Simulator 2021, and X-Plane 11. We matched them by the tags players give It's Titanic 3 on Steam (Simulation, Action-Adventure, Education, Immersive Sim, and Realistic): closest matches first, and among equally close ones the better-known games.

PC Building Simulator
Shared: Simulation · Education · Immersive Sim

BeamNG.drive
Shared: Simulation · Realistic · Physics

Totally Accurate Battle Simulator
Shared: Simulation · Physics · Realistic

Car Mechanic Simulator 2021
Shared: Simulation · Realistic · Singleplayer

X-Plane 11
Shared: Simulation · Realistic · Singleplayer

Car Mechanic Simulator 2018
Shared: Simulation · Realistic · Singleplayer

Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Simulation · Realistic · Singleplayer

Contraband Police
Shared: Simulation · Realistic · Singleplayer

Kerbal Space Program
Shared: Simulation · Physics · Education

Electrician Simulator
Shared: Simulation · Education · Immersive Sim

Uncrashed : FPV Drone Simulator
Shared: Simulation · Physics · Realistic

Universe Sandbox
Shared: Simulation · Realistic · Physics

X-Plane 12
Shared: Simulation · Realistic · Action-Adventure

Half Sword
Shared: Physics · Simulation · Realistic

Cooking Simulator
Shared: Simulation · Realistic · Singleplayer

Train Sim World® 2
Shared: Simulation · Realistic · Singleplayer

House Flipper
Shared: Simulation · Singleplayer · Immersive Sim

Construction Simulator
Shared: Simulation · Realistic · Education

112 Operator
Shared: Simulation · Realistic · Singleplayer

Gas Station Simulator
Shared: Simulation · Singleplayer · Realistic

Derail Valley
Shared: Simulation · Realistic · Immersive Sim

City Car Driving
Shared: Simulation · Realistic · Singleplayer

Motorcycle Mechanic Simulator 2021
Shared: Simulation · Immersive Sim · Education

Police Simulator: Patrol Officers
Shared: Simulation · Realistic · Immersive Sim