Games like Factory Engineer
Games like Factory Engineer include Factorio, Prison Architect, Dyson Sphere Program, Oxygen Not Included, and Cities: Skylines. We matched them by the tags players give Factory Engineer on Steam (Simulation, Strategy, Indie, Sandbox, and Building): closest matches first, and among equally close ones the better-known games.

Factorio
Shared: Sandbox · Strategy · Base Building

Prison Architect
Shared: Simulation · Sandbox · Building

Dyson Sphere Program
Shared: Simulation · Building · Base Building

Oxygen Not Included
Shared: Base Building · Building · Resource Management

Cities: Skylines
Shared: Simulation · Strategy · Building

Kingdoms and Castles
Shared: Simulation · Strategy · Sandbox

Manor Lords
Shared: Strategy · Simulation · Base Building

shapez
Shared: Sandbox · Strategy · Base Building

Satisfactory
Shared: Base Building · Building · Automation

Against the Storm
Shared: Simulation · Strategy · Building

shapez 2 - Factory
Shared: Strategy · Simulation · Building

Dwarf Fortress
Shared: Simulation · Strategy · Base Building

Foundation
Shared: Simulation · Strategy · Sandbox

Automation Empire
Shared: Simulation · Strategy · Sandbox

Captain of Industry
Shared: Simulation · Strategy · Base Building

Automation - The Car Company Tycoon Game
Shared: Simulation · Sandbox · Building

Production Line : Car factory simulation
Shared: Simulation · Strategy · Building

MineMogul
Shared: Strategy · Building · Simulation

RimWorld
Shared: Strategy · Sandbox · Base Building

Little Big Workshop
Shared: Simulation · Strategy · Building

Jurassic World Evolution
Shared: Simulation · Building · Strategy

Cities: Skylines II
Shared: Simulation · Sandbox · Building

Empires of the Undergrowth
Shared: Simulation · Strategy · Base Building

Workers & Resources: Soviet Republic
Shared: Strategy · Simulation · Base Building