Games like Quarantineer
Games like Quarantineer include Frostpunk, Dawn of Man, Infection Free Zone, They Are Billions, and Banished. We matched them by the tags players give Quarantineer on Steam (Dystopian , Survival, Post-apocalyptic, Simulation, and City Builder): closest matches first, and among equally close ones the better-known games.

Frostpunk
Shared: Survival · City Builder · Post-apocalyptic

Dawn of Man
Shared: Survival · City Builder · Simulation

Infection Free Zone
Shared: Post-apocalyptic · City Builder · Survival

They Are Billions
Shared: Survival · Colony Sim · RTS

Banished
Shared: City Builder · Survival · Simulation

Endzone - A World Apart
Shared: Survival · City Builder · Post-apocalyptic

Frostpunk 2
Shared: Survival · City Builder · Post-apocalyptic

The Wandering Village
Shared: Simulation · City Builder · Post-apocalyptic

Manor Lords
Shared: Simulation · City Builder · Strategy

Kingdoms and Castles
Shared: City Builder · Simulation · Colony Sim

Rise to Ruins
Shared: Survival · City Builder · Colony Sim

RimWorld
Shared: Survival · Colony Sim · Simulation

This War of Mine
Shared: Survival · Simulation · Post-apocalyptic

Kenshi
Shared: Survival · Post-apocalyptic · Simulation

IXION
Shared: Survival · City Builder · Simulation

Stonehearth
Shared: Survival · City Builder · Colony Sim

Going Medieval
Shared: Survival · Colony Sim · City Builder

7 Days to Die
Shared: Survival · Post-apocalyptic · Simulation

Project Zomboid
Shared: Survival · Post-apocalyptic · Simulation

Surviving the Aftermath
Shared: Post-apocalyptic · Simulation · Survival

Rebuild 3: Gangs of Deadsville
Shared: Survival · Post-apocalyptic · Colony Sim

Workers & Resources: Soviet Republic
Shared: Simulation · City Builder · Strategy

Dwarf Fortress
Shared: Simulation · Colony Sim · City Builder

Lessaria: Fantasy Kingdom Sim
Shared: Simulation · City Builder · RTS