Games like Equilibrium
Games like Equilibrium include PC Building Simulator, Poly Bridge, Totally Accurate Battle Simulator, Planet Zoo, and Reus. We matched them by the tags players give Equilibrium on Steam (Simulation, Puzzle, Nature, Singleplayer, and Education): closest matches first, and among equally close ones the better-known games.

PC Building Simulator
Shared: Simulation · Education · Sandbox

Poly Bridge
Shared: Simulation · Puzzle · Singleplayer

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Singleplayer

Planet Zoo
Shared: Simulation · Nature · Sandbox

Reus
Shared: Simulation · God Game · Singleplayer

Car Mechanic Simulator 2021
Shared: Simulation · Singleplayer · Sandbox

Slime Rancher
Shared: Singleplayer · Simulation · Cute

Equilinox
Shared: Simulation · Singleplayer · Nature

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

Planet Coaster 2
Shared: Simulation · Sandbox · Singleplayer

House Flipper
Shared: Simulation · Singleplayer · Sandbox

Niche - a genetics survival game
Shared: Puzzle · Singleplayer · Nature

Kerbal Space Program
Shared: Simulation · Sandbox · Education

Poly Bridge 2
Shared: Puzzle · Simulation · Singleplayer

while True: learn()
Shared: Simulation · Puzzle · Education

Mountain
Shared: Simulation · Singleplayer · God Game

Planetary Life
Shared: Simulation · God Game · Nature

Wobbledogs
Shared: Simulation · Sandbox · Cute

Planet Coaster
Shared: Simulation · Sandbox · Singleplayer

Papers, Please
Shared: Simulation · Singleplayer · Puzzle

Slime Rancher 2
Shared: Singleplayer · Simulation · Cute

Creature Kitchen
Shared: Puzzle · Nature · Cute

Mini Motorways
Shared: Simulation · Puzzle · Singleplayer

Supermarket Simulator
Shared: Simulation · Singleplayer · Management