Games like Biztopia
Games like Biztopia include Big Ambitions, Supermarket Simulator, Prison Architect, Kenshi, and Software Inc.. We matched them by the tags players give Biztopia on Steam (Simulation, Online Co-Op, Life Sim, Capitalism, and Sandbox): closest matches first, and among equally close ones the better-known games.

Big Ambitions
Shared: Simulation · Capitalism · Life Sim

Supermarket Simulator
Shared: Simulation · Economy · Life Sim

Prison Architect
Shared: Simulation · Sandbox · Building

Kenshi
Shared: Sandbox · Simulation · Open World

Software Inc.
Shared: Simulation · Capitalism · Economy

Waterpark Simulator
Shared: Simulation · Sandbox · Economy

Paralives
Shared: Simulation · Life Sim · Sandbox

Manor Lords
Shared: Simulation · Sandbox · Base Building

Cities: Skylines
Shared: Simulation · Sandbox · Economy

Ranch Simulator: Build, Hunt, Farm
Shared: Simulation · Online Co-Op · Open World

PC Building Simulator
Shared: Simulation · Immersive Sim · Sandbox

Mall Simulator
Shared: Simulation · Capitalism · Life Sim

Cities: Skylines II
Shared: Simulation · Sandbox · Economy

Stardew Valley
Shared: Life Sim · Simulation · Sandbox

ContractVille
Shared: Simulation · Online Co-Op · Immersive Sim

Dyson Sphere Program
Shared: Simulation · Base Building · Open World

7 Days to Die
Shared: Online Co-Op · Open World · Base Building

The Guild 3
Shared: Life Sim · Simulation · Economy

Internet Cafe Simulator 2
Shared: Simulation · Life Sim · Sandbox

Kingdoms and Castles
Shared: Simulation · Sandbox · Economy

Stormworks: Build and Rescue
Shared: Sandbox · Open World · Immersive Sim

The Sims™ 4
Shared: Life Sim · Simulation · Sandbox

Planet Coaster 2
Shared: Simulation · Sandbox · Economy

Satisfactory
Shared: Base Building · Open World · Sandbox