Games like INvent
Games like INvent include Garry's Mod, Besiege, Space Engineers, Poly Bridge, and People Playground. We matched them by the tags players give INvent on Steam (Puzzle, Physics, Sandbox, Building, and Multiplayer): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Sandbox · Physics · Building

Besiege
Shared: Physics · Sandbox · Simulation

Space Engineers
Shared: Sandbox · Building · Physics

Poly Bridge
Shared: Physics · Puzzle · Building

People Playground
Shared: Sandbox · Physics · 2D

Human Fall Flat
Shared: Puzzle · Physics · Multiplayer

Terraria
Shared: Sandbox · Multiplayer · 2D

Crazy Machines 3
Shared: Puzzle · Physics · Sandbox

Brick Rigs
Shared: Sandbox · Building · Physics

Scrap Mechanic
Shared: Sandbox · Building · Physics

Poly Bridge 2
Shared: Physics · Puzzle · Building

Teardown
Shared: Physics · Sandbox · Multiplayer

Totally Accurate Battle Simulator
Shared: Sandbox · Physics · Simulation

Bridge Constructor Portal
Shared: Puzzle · Physics · Building

CarX Drift Racing Online
Shared: Sandbox · Multiplayer · Simulation

Kerbal Space Program
Shared: Sandbox · Physics · Simulation

Forts
Shared: Physics · Multiplayer · Building

Tricky Towers
Shared: Puzzle · Physics · Multiplayer

Stardew Valley
Shared: Multiplayer · Sandbox · Simulation

Rust
Shared: Multiplayer · Building · Sandbox

Project Zomboid
Shared: Sandbox · Multiplayer · Building

Prison Architect
Shared: Sandbox · Building · Simulation

Fireworks Mania - An Explosive Simulator
Shared: Sandbox · Building · Physics

Poly Bridge 3
Shared: Puzzle · Physics · Building

