Games like Wild Souls
Games like Wild Souls include Equilinox, Reus, Potion Craft: Alchemist Simulator, Townscaper, and Stardew Valley. We matched them by the tags players give Wild Souls on Steam (Sandbox, God Game, Nature, Singleplayer, and Simulation): closest matches first, and among equally close ones the better-known games.

Equilinox
Shared: Sandbox · Simulation · Singleplayer

Reus
Shared: God Game · Sandbox · Singleplayer

Potion Craft: Alchemist Simulator
Shared: Singleplayer · Simulation · Relaxing

Townscaper
Shared: Sandbox · Relaxing · Simulation

Stardew Valley
Shared: Sandbox · Simulation · Relaxing

Mountain
Shared: Simulation · Singleplayer · God Game

Planet Zoo
Shared: Sandbox · Simulation · Nature

People Playground
Shared: Sandbox · Singleplayer · 2D

Planet Coaster
Shared: Sandbox · Simulation · Singleplayer

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

Cities: Skylines II
Shared: Sandbox · Simulation · Singleplayer

Universe Sandbox
Shared: Sandbox · Simulation · God Game

Tiny Glade
Shared: Sandbox · Relaxing · Nature

House Flipper
Shared: Simulation · Singleplayer · Sandbox

My Dream Setup
Shared: Sandbox · Simulation · Relaxing

WorldBox - God Simulator
Shared: Sandbox · God Game · Simulation

Sand:box
Shared: Sandbox · God Game · Simulation

Cloud Gardens
Shared: Sandbox · Nature · Relaxing

inbento
Shared: Nature · 2D · Simulation

Solar 2
Shared: Sandbox · Simulation · Relaxing

Game Dev Tycoon
Shared: Simulation · Singleplayer · 2D

Mini Motorways
Shared: Simulation · Singleplayer · Relaxing

SPORE™
Shared: God Game · Sandbox · Simulation

Prison Architect
Shared: Sandbox · Simulation · 2D