Games like Refuge
Games like Refuge include Fallout 4, Fallout: New Vegas, S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition, 鬼谷八荒 Tale of Immortal, and Metro Exodus. We matched them by the tags players give Refuge on Steam (Sandbox, FPS, Post-apocalyptic, Simulation, and Story Rich): closest matches first, and among equally close ones the better-known games.

Fallout 4
Shared: Post-apocalyptic · RPG · Story Rich

Fallout: New Vegas
Shared: Post-apocalyptic · RPG · Story Rich

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: FPS · Post-apocalyptic · RPG

鬼谷八荒 Tale of Immortal
Shared: Sandbox · Simulation · RPG

Metro Exodus
Shared: FPS · Post-apocalyptic · Story Rich

METRO 2033 Redux
Shared: FPS · Post-apocalyptic · Story Rich

METRO Last Light Redux
Shared: FPS · Post-apocalyptic · Story Rich

Kenshi
Shared: Sandbox · RPG · Post-apocalyptic

Arma Reforger
Shared: Simulation · FPS · Sandbox

RimWorld
Shared: Sandbox · Colony Sim · Simulation

7 Days to Die
Shared: Post-apocalyptic · Sandbox · FPS

BioShock Infinite
Shared: FPS · Story Rich · Shooter

Totally Accurate Battle Simulator
Shared: Sandbox · Simulation · Strategy

Freeman: Guerrilla Warfare
Shared: FPS · Sandbox · RPG

Banished
Shared: Simulation · Sandbox · City Builder

Garry's Mod
Shared: Sandbox · FPS · Simulation

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

DayZ
Shared: Post-apocalyptic · FPS · Sandbox

Fallout 3
Shared: Post-apocalyptic · RPG · FPS

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

Ravenfield
Shared: FPS · Sandbox · Shooter

SPORE™
Shared: Sandbox · Simulation · Colony Sim

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · RPG · Simulation

Prison Architect
Shared: Sandbox · Simulation · Colony Sim