Games like Smash
Games like Smash include Teardown, PEAK, Just Cause™ 3, ABZU, and Journey. We matched them by the tags players give Smash on Steam (Indie, Physics, Destruction, Exploration, and Shooter): closest matches first, and among equally close ones the better-known games.

Teardown
Shared: Physics · Destruction · Indie

PEAK
Shared: Physics · Exploration · 3D

Just Cause™ 3
Shared: Destruction · Shooter · Physics

ABZU
Shared: Exploration · Atmospheric · Indie

Journey
Shared: Indie · Exploration · Atmospheric

GRIS
Shared: Indie · Atmospheric · Beautiful

Totally Accurate Battle Simulator
Shared: Physics · Indie · Colorful

Hollow Knight: Silksong
Shared: Indie · Exploration · Singleplayer

RV There Yet?
Shared: Physics · Indie · Exploration

Cairn
Shared: Indie · Exploration · Atmospheric

The Witness
Shared: Exploration · Indie · Colorful

Stray
Shared: Exploration · Atmospheric · Singleplayer

Fun with Ragdolls: The Game
Shared: Physics · Indie · 3D

How to Fish
Shared: Indie · Physics · Shooter

COCOON
Shared: Indie · Exploration · 3D

Chants of Sennaar
Shared: Indie · Colorful · Singleplayer

Fireworks Mania - An Explosive Simulator
Shared: Physics · Exploration · 3D

Aviassembly
Shared: Physics · Exploration · Destruction

People Playground
Shared: Physics · Destruction · Indie

Fallout 4
Shared: Exploration · Shooter · Atmospheric

Goat Simulator
Shared: Physics · Destruction · Indie

Echo Point Nova
Shared: Shooter · Exploration · 3D

Rain World
Shared: Indie · Exploration · Atmospheric

Berry Bury Berry
Shared: Physics · 3D · Indie