Games like Arbor
Games like Arbor include Oxygen Not Included, Prison Architect, 鬼谷八荒 Tale of Immortal, Graveyard Keeper, and Amazing Cultivation Simulator. We matched them by the tags players give Arbor on Steam (RPG, Simulation, 2D, Fantasy, and Singleplayer): closest matches first, and among equally close ones the better-known games.
Oxygen Not Included
Shared: Colony Sim · Singleplayer · 2D
Prison Architect
Shared: Simulation · Sandbox · Colony Sim
鬼谷八荒 Tale of Immortal
Shared: Simulation · Singleplayer · RPG
Graveyard Keeper
Shared: RPG · Simulation · Singleplayer
Amazing Cultivation Simulator
Shared: Simulation · RPG · Sandbox
Clair Obscur: Expedition 33
Shared: RPG · Fantasy · Turn-Based Combat
Stardew Valley
Shared: RPG · Simulation · Sandbox
People Playground
Shared: 2D · Sandbox · Simulation
Potion Craft: Alchemist Simulator
Shared: Simulation · Singleplayer · 2D
RimWorld
Shared: Colony Sim · Simulation · Singleplayer
Cities: Skylines
Shared: Simulation · Singleplayer · Building
觅长生
Shared: RPG · Fantasy · Turn-Based Combat
Craft The World
Shared: Colony Sim · Sandbox · Simulation
Baldur's Gate 3
Shared: RPG · Turn-Based Combat · Fantasy
Metaphor: ReFantazio
Shared: RPG · Turn-Based Combat · Singleplayer
WorldBox - God Simulator
Shared: Simulation · Sandbox · Colony Sim
Banished
Shared: Simulation · Colony Sim · Singleplayer
龙胤立志传
Shared: RPG · Simulation · Turn-Based Combat
Cities: Skylines II
Shared: Simulation · Singleplayer · Sandbox
The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Sandbox · Simulation
The Sims™ 3
Shared: Simulation · Singleplayer · Sandbox
The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Fantasy · Singleplayer
Sword and Fairy
Shared: RPG · Fantasy · Singleplayer
Stonehearth
Shared: Colony Sim · Simulation · Sandbox