Games like Interior Designer
Games like Interior Designer include House Flipper, Garry's Mod, Planet Coaster, The Sims™ 4, and Tiny Glade. We matched them by the tags players give Interior Designer on Steam (Simulation, Building, Sandbox, Casual, and Singleplayer): closest matches first, and among equally close ones the better-known games.

House Flipper
Shared: Simulation · Building · Singleplayer

Garry's Mod
Shared: Sandbox · Building · Multiplayer

Planet Coaster
Shared: Simulation · Building · Sandbox

The Sims™ 4
Shared: Building · Simulation · Sandbox

Tiny Glade
Shared: Building · Sandbox · Casual

PowerWash Simulator
Shared: Simulation · Casual · Multiplayer

Stardew Valley
Shared: Simulation · Multiplayer · Sandbox

My Dream Setup
Shared: Building · Simulation · Sandbox

PC Building Simulator
Shared: Simulation · Building · Sandbox

Supermarket Simulator
Shared: Simulation · Multiplayer · Singleplayer

Hozy
Shared: Sandbox · Casual · Cozy

Planet Zoo
Shared: Simulation · Building · Sandbox

Paralives
Shared: Simulation · Building · Sandbox

Townscaper
Shared: Building · Sandbox · Simulation

Cities: Skylines
Shared: Simulation · Building · Sandbox

The Sims™ 3
Shared: Simulation · Building · Sandbox

Farm Together
Shared: Simulation · Multiplayer · Casual

Low-Budget Repairs
Shared: Simulation · Singleplayer · Casual

inZOI
Shared: Simulation · Building · Singleplayer

Cities: Skylines II
Shared: Simulation · Building · Sandbox

Space Engineers
Shared: Building · Sandbox · Simulation

House Flipper 2
Shared: Simulation · Casual · Building

Waterpark Simulator
Shared: Simulation · Multiplayer · Sandbox

Bloons TD 6
Shared: Singleplayer · Multiplayer · Casual