Games like Energy Island Corp.
Games like Energy Island Corp. include Prison Architect, Cities: Skylines, Oxygen Not Included, Manor Lords, and Game Dev Tycoon. We matched them by the tags players give Energy Island Corp. on Steam (Indie, Management, Economy, Building, and Simulation): closest matches first, and among equally close ones the better-known games.

Prison Architect
Shared: Building · Simulation · Management

Cities: Skylines
Shared: Management · Building · Simulation

Oxygen Not Included
Shared: Building · Management · Base Building

Manor Lords
Shared: Simulation · Management · Base Building

Game Dev Tycoon
Shared: Management · Indie · Simulation

Against the Storm
Shared: Simulation · Building · Management

Workers & Resources: Soviet Republic
Shared: Simulation · Management · Building

Kingdoms and Castles
Shared: Management · Simulation · Resource Management

Captain of Industry
Shared: Simulation · Economy · Management

Gas Station Simulator
Shared: Management · Economy · Simulation

Startup Company
Shared: Management · Economy · Indie

Cities: Skylines II
Shared: Building · Management · Simulation

Production Line : Car factory simulation
Shared: Management · Economy · Simulation

Project Highrise
Shared: Management · Building · Simulation

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

Tavern Master
Shared: Management · Building · Simulation

Foundation
Shared: Simulation · Management · Building

Jurassic World Evolution
Shared: Building · Management · Simulation

Rise of Industry
Shared: Management · Economy · Indie

Jurassic World Evolution 2
Shared: Management · Building · Simulation

Supermarket Simulator
Shared: Management · Simulation · Economy

Transport Fever 2
Shared: Management · Simulation · Economy

Cookie Clicker
Shared: Indie · Management · Economy

Mad Games Tycoon
Shared: Management · Economy · Simulation