Games like Brainrot Battle Simulator
Games like Brainrot Battle Simulator include Goat Simulator, Totally Accurate Battle Simulator, People Playground, 鬼谷八荒 Tale of Immortal, and Russian Life Simulator. We matched them by the tags players give Brainrot Battle Simulator on Steam (Auto Battler, Memes, Sandbox, Simulation, and Combat): closest matches first, and among equally close ones the better-known games.

Goat Simulator
Shared: Simulation · Sandbox · Comedy

Totally Accurate Battle Simulator
Shared: Sandbox · Simulation · Singleplayer

People Playground
Shared: Sandbox · 2D · Simulation

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

Russian Life Simulator
Shared: Memes · Simulation · 2D

Garry's Mod
Shared: Sandbox · Simulation · Singleplayer

Your Only Move Is HUSTLE
Shared: Sandbox · Action · 2D

Shawarma Legend
Shared: Simulation · 2D · Cartoony

Planet Coaster
Shared: Simulation · Sandbox · Singleplayer

Internet Cafe Simulator 2
Shared: Simulation · Memes · Sandbox

Space Engineers
Shared: Sandbox · Simulation · Singleplayer

War Thunder
Shared: Simulation · Combat · Action

Prison Architect
Shared: Simulation · Sandbox · 2D

Bum Simulator
Shared: Simulation · Sandbox · Action

Two Point Hospital
Shared: Simulation · Sandbox · Singleplayer

Terraria
Shared: Sandbox · 2D · Action

SPORE™
Shared: Sandbox · Simulation · Action

Worming from Home
Shared: Simulation · Sandbox · Memes

Ultimate Epic Battle Simulator
Shared: Sandbox · Simulation · Action

Hot Dogs, Horseshoes & Hand Grenades
Shared: Sandbox · Simulation · Action

Arma 3
Shared: Simulation · Action · Sandbox

TRADESMAN: Deal to Dealer
Shared: Auto Battler · Sandbox · 2D

The Henry Stickmin Collection
Shared: Memes · Comedy · 2D

Spaceflight Simulator
Shared: Sandbox · Simulation · 2D