Games like Inside The Cubes
Games like Inside The Cubes include Wobbly Life, Human Fall Flat, Donut County, Totally Accurate Battle Simulator, and There Is No Game: Wrong Dimension. We matched them by the tags players give Inside The Cubes on Steam (Early Access, Adventure, Simulation, Indie, and Casual): closest matches first, and among equally close ones the better-known games.

Wobbly Life
Shared: Adventure · Simulation · Casual

Human Fall Flat
Shared: Adventure · Puzzle · Funny

Donut County
Shared: Indie · Casual · Adventure

Totally Accurate Battle Simulator
Shared: Simulation · Adventure · Indie

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Puzzle

VRChat
Shared: VR · Early Access · Simulation

Deliver Us The Moon
Shared: Adventure · Indie · Sci-fi

BONEWORKS
Shared: VR · Adventure · Physics

Kerbal Space Program
Shared: Simulation · Physics · Indie

Chained Together
Shared: Adventure · Casual · Simulation

Slime Rancher
Shared: Adventure · Simulation · Casual

LIMBO
Shared: Indie · Puzzle · Adventure

Gang Beasts
Shared: Casual · Funny · Physics

Pikuniku
Shared: Adventure · Indie · Casual

Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Simulation · VR · Adventure

Rick and Morty: Virtual Rick-ality
Shared: Adventure · Simulation · VR

Surgeon Simulator
Shared: Simulation · Indie · Physics

Banana
Shared: Casual · Simulation · Singleplayer

Papers, Please
Shared: Simulation · Indie · Puzzle

Goat Simulator
Shared: Simulation · Funny · Casual

Feed and Grow: Fish
Shared: Simulation · Early Access · Indie

Outer Wilds
Shared: Adventure · Puzzle · Indie

Poly Bridge
Shared: Simulation · Puzzle · Physics

Seen
Shared: Indie · Adventure · Puzzle