Games like CivIdle - Supporter Pack
Games like CivIdle - Supporter Pack include Manor Lords, Against the Storm, Workers & Resources: Soviet Republic, Dyson Sphere Program, and Empires of the Undergrowth. We matched them by the tags players give CivIdle - Supporter Pack on Steam (Strategy, Simulation, Idler, Base Building, and Automation): closest matches first, and among equally close ones the better-known games.

Manor Lords
Shared: Strategy · Simulation · Base Building

Against the Storm
Shared: Strategy · Simulation · Base Building

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

Dyson Sphere Program
Shared: Automation · Base Building · Simulation

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

Captain of Industry
Shared: Simulation · Strategy · Automation

Farthest Frontier
Shared: Strategy · Base Building · Historical

Factorio
Shared: Base Building · Automation · Strategy

Kingdoms and Castles
Shared: Simulation · Strategy · Base Building

Sid Meier’s Civilization® VI
Shared: Strategy · Historical · Simulation

Foundation
Shared: Simulation · Strategy · Medieval

Norland
Shared: Strategy · Simulation · Base Building

Ostriv
Shared: Strategy · Simulation · Base Building

Crusader Kings III
Shared: Strategy · Simulation · Historical

Prison Architect
Shared: Simulation · Strategy · Base Building

Tavern Master
Shared: Simulation · Strategy · Management

Cities: Skylines
Shared: Simulation · Strategy · Management

Oxygen Not Included
Shared: Base Building · Simulation · Strategy

Banished
Shared: Strategy · Simulation · Indie

Rise of Industry
Shared: Strategy · Simulation · Base Building

Crusader Kings II
Shared: Strategy · Simulation · Historical

Victoria 3
Shared: Strategy · Simulation · Historical

Cataclismo
Shared: Strategy · Simulation · Base Building

RimWorld
Shared: Strategy · Base Building · Simulation