Games like Tower Lab
Games like Tower Lab include Garry's Mod, Totally Accurate Battle Simulator, Space Engineers, Kerbal Space Program, and People Playground. We matched them by the tags players give Tower Lab on Steam (Physics, Sandbox, Simulation, Tower Defense, and Building): closest matches first, and among equally close ones the better-known games.
Garry's Mod
Shared: Sandbox · Physics · Building
Totally Accurate Battle Simulator
Shared: Sandbox · Simulation · Physics
Space Engineers
Shared: Sandbox · Building · Physics
Kerbal Space Program
Shared: Sandbox · Simulation · Physics
People Playground
Shared: Sandbox · Physics · Simulation
Dyson Sphere Program
Shared: Building · Simulation · Base Building
Scrap Mechanic
Shared: Sandbox · Building · Physics
Prison Architect
Shared: Simulation · Sandbox · Building
Besiege
Shared: Sandbox · Physics · Simulation
RimWorld
Shared: Sandbox · Base Building · Strategy
Cities: Skylines
Shared: Simulation · Building · Sandbox
Jurassic World Evolution
Shared: Simulation · Building · Sandbox
Hardspace: Shipbreaker
Shared: Physics · Simulation · Sandbox
House Flipper
Shared: Simulation · Sandbox · Building
Fun with Ragdolls: The Game
Shared: Physics · Sandbox · Simulation
Forts
Shared: Physics · Sandbox · Building
Goat Simulator
Shared: Simulation · Sandbox · Physics
Oxygen Not Included
Shared: Building · Sandbox · Base Building
Planet Coaster
Shared: Simulation · Sandbox · Building
Rogue Tower
Shared: Tower Defense · Strategy · 3D
Poly Bridge
Shared: Physics · Simulation · Building
Brick Rigs
Shared: Sandbox · Physics · Building
Teardown
Shared: Physics · Sandbox · Simulation
Stormworks: Build and Rescue
Shared: Sandbox · Physics · Building