Games like Idle Galaxy
Games like Idle Galaxy include Factorio, Cookie Clicker, Kenshi, Nodebuster, and Totally Accurate Battle Simulator. We matched them by the tags players give Idle Galaxy on Steam (Idler, Incremental, God Game, Sandbox, and Immersive Sim): closest matches first, and among equally close ones the better-known games.
Factorio
Shared: Sandbox · Crafting · Resource Management
Cookie Clicker
Shared: Idler · Incremental · Indie
Kenshi
Shared: Sandbox · Immersive Sim · Crafting
Nodebuster
Shared: Incremental · Idler · Simulation
Totally Accurate Battle Simulator
Shared: Sandbox · Simulation · Physics
Scritchy Scratchy
Shared: Incremental · Idler · Resource Management
Ages of Conflict: World War Simulator
Shared: God Game · Sandbox · Idler
SimCity™ 4 Deluxe Edition
Shared: Immersive Sim · Sandbox · God Game
Sixty Four
Shared: Incremental · Simulation · Idler
Forage Wizard
Shared: Incremental · Crafting · Simulation
Kingdoms and Castles
Shared: Sandbox · Resource Management · Simulation
Universe Sandbox
Shared: Sandbox · Simulation · Physics
Shelldiver
Shared: Incremental · Idler · Resource Management
Beltmatic
Shared: Sandbox · Idler · Resource Management
shapez
Shared: Sandbox · Crafting · Resource Management
Space Engineers
Shared: Sandbox · Physics · Simulation
Oxygen Not Included
Shared: Sandbox · Resource Management · Base Building
Prison Architect
Shared: Sandbox · Simulation · Base Building
Outpath
Shared: Sandbox · Crafting · Incremental
A Game About Feeding A Black Hole
Shared: Incremental · Idler · Strategy
Tower Wizard
Shared: Idler · Incremental · Resource Management
Foundation
Shared: Sandbox · Simulation · Strategy
Satisfactory
Shared: Crafting · Sandbox · Base Building
Kerbal Space Program
Shared: Sandbox · Simulation · Physics