Games like Mycelium Conquest
Games like Mycelium Conquest include Factorio, Satisfactory, Mindustry, Dyson Sphere Program, and Prison Architect. We matched them by the tags players give Mycelium Conquest on Steam (Automation, Base Building, Resource Management, PvE, and Exploration): closest matches first, and among equally close ones the better-known games.

Factorio
Shared: Automation · Base Building · Resource Management

Satisfactory
Shared: Automation · Base Building · Resource Management

Mindustry
Shared: Automation · Base Building · Resource Management

Dyson Sphere Program
Shared: Automation · Base Building · Resource Management

Prison Architect
Shared: Base Building · Sandbox · City Builder

shapez
Shared: Automation · Base Building · Resource Management

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

Hydroneer
Shared: Automation · Base Building · Sandbox

Techtonica
Shared: Automation · Base Building · Exploration

Captain of Industry
Shared: Automation · Base Building · Resource Management

Flotsam
Shared: Base Building · Automation · Resource Management

Manor Lords
Shared: Base Building · City Builder · Strategy

Anno 1800
Shared: City Builder · Resource Management · Strategy

The Crust
Shared: Base Building · Automation · Resource Management

FOUNDRY
Shared: Automation · Base Building · Resource Management

Factory Town
Shared: Automation · Base Building · Resource Management

Kingdoms and Castles
Shared: Resource Management · City Builder · Base Building

RimWorld
Shared: Base Building · Sandbox · Strategy

Against the Storm
Shared: Base Building · City Builder · Strategy

Timberborn
Shared: Automation · City Builder · Sandbox

Dwarf Fortress
Shared: Base Building · City Builder · Strategy

Outpath
Shared: Automation · Base Building · Resource Management

Automation Empire
Shared: Automation · Base Building · Resource Management

Desynced
Shared: Automation · Base Building · Strategy