Games like Heavenly Bodies
Games like Heavenly Bodies include Human Fall Flat, Kerbal Space Program, Octodad: Dadliest Catch, Gang Beasts, and It Takes Two. We matched them by the tags players give Heavenly Bodies on Steam (Physics, Local Co-Op, Space, Difficult, and Puzzle): closest matches first, and among equally close ones the better-known games.

Human Fall Flat
Shared: Physics · Puzzle · Co-op

Kerbal Space Program
Shared: Space · Physics · Simulation

Octodad: Dadliest Catch
Shared: Physics · Local Co-Op · Adventure

Gang Beasts
Shared: Physics · Co-op · Local Co-Op

It Takes Two
Shared: Local Co-Op · Puzzle · Co-op

LEGO® Star Wars™: The Skywalker Saga
Shared: Space · Local Co-Op · Adventure

Poly Bridge
Shared: Physics · Puzzle · Simulation

LIMBO
Shared: Puzzle · Atmospheric · Adventure

Kerbal Space Program 2
Shared: Space · Physics · Difficult

Biped
Shared: Physics · Puzzle · Co-op

Portal 2
Shared: Puzzle · Singleplayer · Puzzle Platformer

Space Engineers
Shared: Space · Physics · Simulation

LEGO® Star Wars™ - The Complete Saga
Shared: Local Co-Op · Adventure · Co-op

BADLAND: Game of the Year Edition
Shared: Local Co-Op · Adventure · Puzzle

Cairn
Shared: Difficult · Adventure · Stylized

Deliver Us The Moon
Shared: Space · Adventure · Atmospheric

COCOON
Shared: Puzzle · Adventure · Atmospheric

PEAK
Shared: Physics · Adventure · Co-op

Portal
Shared: Puzzle · Physics · Puzzle Platformer

Outer Wilds
Shared: Space · Adventure · Puzzle

Trailmakers
Shared: Space · Adventure · Physics

Unravel Two
Shared: Local Co-Op · Puzzle · Co-op

Poly Bridge 2
Shared: Physics · Puzzle · Difficult

I Am Bread
Shared: Physics · Simulation · Difficult