Games like Industry Idle - Expansion Pack 1
Games like Industry Idle - Expansion Pack 1 include Factorio, Manor Lords, Captain of Industry, Frostpunk, and Against the Storm. We matched them by the tags players give Industry Idle - Expansion Pack 1 on Steam (Strategy, Simulation, Free to Play, Idler, and Automation): closest matches first, and among equally close ones the better-known games.

Factorio
Shared: Automation · Strategy · Resource Management

Manor Lords
Shared: Strategy · Simulation · Base Building

Captain of Industry
Shared: Simulation · Strategy · Automation

Frostpunk
Shared: Strategy · Survival · Resource Management

Against the Storm
Shared: Strategy · Simulation · Base Building

Cities: Skylines
Shared: Simulation · Strategy · Management

Dyson Sphere Program
Shared: Automation · Simulation · Resource Management

RimWorld
Shared: Strategy · Survival · Simulation

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

Kingdoms and Castles
Shared: Simulation · Strategy · Resource Management

Frostpunk 2
Shared: Strategy · Simulation · Survival

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

Transport Fever 2
Shared: Strategy · Simulation · Management

Dwarf Fortress
Shared: Simulation · Strategy · Base Building

Prison Architect
Shared: Simulation · Strategy · Base Building

Oxygen Not Included
Shared: Survival · Simulation · Resource Management

Gamblers Table
Shared: Automation · Incremental · Minimalist

Banished
Shared: Strategy · Simulation · Survival

Foundation
Shared: Simulation · Strategy · Resource Management

Norland
Shared: Strategy · Simulation · Base Building

Nodebuster
Shared: Strategy · Simulation · Incremental

This War of Mine
Shared: Strategy · Survival · Simulation

Cities: Skylines II
Shared: Simulation · Strategy · Management

Idle Champions of the Forgotten Realms
Shared: Strategy · Free to Play · Idler