Games like Architect Life: A House Design Simulator
Games like Architect Life: A House Design Simulator include House Flipper, PC Building Simulator, The Sims™ 4, Planet Coaster, and Cities: Skylines. We matched them by the tags players give Architect Life: A House Design Simulator on Steam (Simulation, Building, Singleplayer, Casual, and Sandbox): closest matches first, and among equally close ones the better-known games.

House Flipper
Shared: Simulation · Singleplayer · Building

PC Building Simulator
Shared: Simulation · Building · Sandbox

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

Planet Coaster
Shared: Simulation · Building · Sandbox

Cities: Skylines
Shared: Simulation · Building · Singleplayer

Supermarket Simulator
Shared: Simulation · Singleplayer · Building

inZOI
Shared: Simulation · Singleplayer · Building

Cities: Skylines II
Shared: Simulation · Building · Sandbox

Garry's Mod
Shared: Sandbox · Building · Casual

Gas Station Simulator
Shared: Simulation · Singleplayer · Building

Stardew Valley
Shared: Simulation · Life Sim · Relaxing

Paralives
Shared: Simulation · Building · Life Sim

The Sims™ 3
Shared: Simulation · Building · Singleplayer

Planet Zoo
Shared: Simulation · Building · Sandbox

House Flipper 2
Shared: Simulation · Casual · Relaxing

PowerWash Simulator
Shared: Simulation · Casual · Relaxing

Builder Simulator
Shared: Simulation · Building · Singleplayer

My Dream Setup
Shared: Building · Simulation · Sandbox

Townscaper
Shared: Building · Sandbox · Relaxing

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

Planet Coaster 2
Shared: Simulation · Building · Sandbox

Tiny Glade
Shared: Building · Sandbox · Relaxing

Cooking Simulator
Shared: Simulation · Singleplayer · Sandbox

Low-Budget Repairs
Shared: Simulation · Singleplayer · Casual